Conditional Conjunctions: Supposing, Provided That, and Even If
While "if" is the most common conditional conjunction, English has many other words to express conditions, each with its own subtle nuance. For example, provided that emphasizes a strict requirement ("I will help you provided that you pay me"), while even if shows that a result will happen regardless of the condition ("I won't help you even if you pay me").
In this challenge, you will navigate quirky scenarios—from alien peace treaties and time machine safety manuals to a dramatic cat's dinner demands—to practice these advanced structures. You'll need to choose the logically and grammatically correct conjunctions to complete the sentences, distinguishing between supposing, assuming, on condition that, unless, and but for.
You'll work through 8 questions in single-choice, multi-choice, and drag-and-drop formats.
Try the quiz to check your knowledge!
The correct answers are But for my coach's relentless yelling, Had it not been for my coach's relentless yelling, and If it hadn't been for my coach's relentless yelling.
To express a past counterfactual condition (meaning "if this hadn't happened"), we can use the third conditional phrase if it hadn't been for + noun, its inverted form had it not been for + noun, or the advanced prepositional phrase but for + noun.
Except for is generally used to show an exception to a general statement (e.g., "The theater was empty except for my coach"), not to form a counterfactual conditional. Unless requires a full clause, and its tense does not align with the third conditional result clause here.
Help the eccentric inventor complete the safety protocols for his new time machine by dragging the correct conditional conjunctions into the blanks.
The university board has agreed to fund our temporal displacement device, provided that we strictly limit our initial tests to inanimate objects.
We must formulate a flawless contingency plan right now, supposing a confused velociraptor accidentally follows you back to the lab.
The core reactor will automatically initiate an emergency shutdown, unless you remember to recalibrate the cooling valves every three hours.
The correct answers are:
The university board has agreed to fund our temporal displacement device, provided that we strictly limit our initial tests to inanimate objects.
Provided that establishes a strict condition for a positive outcome (they will fund it only if we limit the tests). "Unless" would reverse the logic, and "supposing" creates a hypothetical question rather than a firm agreement.
We must formulate a flawless contingency plan right now, supposing a confused velociraptor accidentally follows you back to the lab.
Supposing is used to invite someone to imagine a hypothetical situation (meaning "what if").
The core reactor will automatically initiate an emergency shutdown, unless you remember to recalibrate the cooling valves every three hours.
Unless introduces a negative condition, meaning "if you do not." The reactor shuts down if you do not recalibrate the valves.
The correct answers are provided that, on condition that, and as long as.
Provided that, on condition that, and as long as are all conditional conjunctions used to say that one thing will happen only if another specific condition is met (often imposing a restriction or rule).
Supposing is used for imaginary or hypothetical situations (usually at the beginning of a question), and unless means "if not," which would completely change the meaning to a disastrous outcome!
Complete the pet sitter's highly specific instructions for dealing with a very dramatic cat.
Sir Fluffington will still refuse to eat his gourmet salmon ____ you serve it on his fancy crystal platter; he exclusively dines from solid gold bowls.
The correct answer is even if.
"Even if" is used to emphasize that a particular condition (serving the salmon on crystal) will not change the outcome (he will still refuse to eat). "Unless" would imply that serving it on crystal would make him eat it, which contradicts the fact that he only eats from gold bowls.
The correct answers are: Supposing the chef catches us, what exactly is our escape plan? Assuming we bypass the laser grid, we still have to crack the parmesan safe. Even if we get the recipe, no one will ever believe we pulled this off.
Supposing and assuming are excellent C1-level conjunctions for setting up hypothetical scenarios. Even if correctly introduces a condition that does not change the main clause's outcome.
The sentence starting with Unless is incorrect because "unless" already means "if not," making "unless we don't" a confusing double negative.
The sentence starting with Provided is grammatically correct but logically flawed; we use "provided (that)" for desired conditions or requirements, not for disasters like being attacked by dogs!
Select the correct phrase to complete the alien ambassador's rather unusual peace treaty.
The Galactic Council has agreed that Earth will be spared from immediate vaporization, ____ your world leaders supply us with a weekly tribute of chocolate chip cookies.
The correct answer is on condition that.
"On condition that" is a formal conditional conjunction meaning "only if," which perfectly fits the stipulation of a treaty. "In case" expresses a precaution, "lest" means "for fear that," and "even though" introduces a factual concession rather than a condition.
Complete the exhausted theater director's email to the producers regarding their star actress's demands by dragging the correct conjunctions into the blanks.
Madame Bianca has stated she will absolutely not step onto the stage tonight, even if we offer to triple her performance fee.
The producers have to decide by noon whether they want to meet her ridiculous dressing room demands or simply cancel the entire run of the play.
She will graciously allow the understudy to share her spotlight, on condition that the poor boy remains at least six feet away from her at all times.
The correct answers are:
Madame Bianca has stated she will absolutely not step onto the stage tonight, even if we offer to triple her performance fee.
Even if is a concessive conditional conjunction. It shows that the main clause (her refusal to perform) remains true regardless of the hypothetical condition (tripling her fee).
The producers have to decide by noon whether they want to meet her ridiculous dressing room demands or simply cancel the entire run of the play.
Whether pairs with "or" to introduce an exhaustive conditional clause, showing that a choice must be made between two distinct alternatives.
She will graciously allow the understudy to share her spotlight, on condition that the poor boy remains at least six feet away from her at all times.
On condition that is a formal conjunction used to express a very strict, non-negotiable stipulation.
Help the quirky inventor finalize the safety manual for his time machine by choosing the correct word.
____ you accidentally step on a Jurassic mosquito, how would you prevent a catastrophic alteration of the timeline?
The correct answer is Supposing.
"Supposing" (or "supposing that") is used as a conditional conjunction to invite someone to imagine a hypothetical situation, often at the beginning of a question. "Provided that" and "As long as" mean "only if" and do not fit the context of a hypothetical question, while "Unless" would illogically mean "If you do not step on a mosquito."
Clause
If you've ever been told your sentence is a "run-on" or that you've used a comma where there should be a semicolon — you've hit the limits of writing without seeing clauses. Get this concept solid and most punctuation problems quietly disappear: you can finally tell a complete thought from a fragment without guessing.
A clause is a grammatical unit built around a verb, usually with a subject and a predicate. Independent clauses stand alone (I missed the bus); dependent clauses can't (Because I overslept). Combine them and you build complex sentences.
Complex sentence
If your writing is technically correct but reads like a list of short, disconnected statements — I overslept. I missed the bus. I was late. — you've hit the limit of what simple sentences can do. Complex sentences are how you fuse those into one flowing thought (Because I overslept, I missed the bus and was late). It's the single biggest jump in writing maturity.
A complex sentence combines an independent clause with at least one dependent clause: I missed the bus because I overslept. The dependent clause typically signals time, reason, condition, or describes a noun, and is introduced by subordinating conjunctions (because, although, if, when) or relative pronouns.
Conditional sentence
Want to say I would have caught the train if I'd left earlier without freezing on the verb forms? That's a third conditional, and it's one of five patterns English uses to talk about possibilities, regrets, and hypotheticals. Get the system right and you stop sounding stuck in the present tense.
A conditional sentence pairs a condition clause (usually with if) with a consequence clause: If it rains, we stay in. The five named patterns — zero, first, second, third, and mixed — each match a specific time frame and likelihood, with their own tense rules.
Conjunction
If your writing reads like a list of separate sentences — I was tired. I went home. I slept badly. — the missing piece is conjunctions. They're how you bind ideas together: I was tired, so I went home, but I still slept badly. Pick the wrong one and the relationship between ideas flips; pick none and your writing stays choppy.
A conjunction connects words, phrases, or clauses. Coordinating conjunctions (and, but, or, so, yet, for, nor) link equal units; subordinating conjunctions (because, although, if, when, while) introduce dependent clauses.
Inversion
If you've ever read Rarely have I seen such talent in a book or speech and wondered why the verb came before the subject — you've met inversion's literary form. It's the same machinery English uses for questions (Has Sam read it?) but applied to declarative sentences for emphasis. Mastering it is the difference between flat formal writing and prose that lands.
Inversion swaps the normal subject + verb order. The basic case is questions: Has Sam read it?. The advanced case is fronted negatives and restrictives: Rarely have I seen such dedication; Not only does she sing, she also writes. The latter is a C1+ feature.
Negation
If your native language uses double negatives (I don't see nothing) — like Russian, Spanish, or French — you've probably been told this is wrong in English and not been entirely sure what the fix is. Standard English uses one negative per clause: either I saw nothing or I didn't see anything, never both. Once you internalise that single rule, your written English clears up a lot.
Negation in English uses not after an auxiliary or modal verb: I am not going. Without an auxiliary, you add do-support (I do not go). Negative words like never and nobody already negate the clause — adding not on top creates non-standard double negatives.
Phrase
If you've ever read a long sentence in English and felt lost in the middle, you've hit a sentence with too many phrases stacked together. Learning to spot phrases — on the table, the man with the hat, very quickly — turns dense prose into something you can parse: each phrase is one chunk of meaning, not a string of unrelated words.
A phrase is a group of words functioning as a single unit in a sentence, without a subject + verb pair (which would make it a clause). Types include noun phrase (the red car), verb phrase (has been running), prepositional phrase (on the table), and adjective/adverb phrases.
Questions
If you've ever asked You like coffee? with rising intonation and gotten a confused look — you've felt the gap between casual and grammatical English questions. Many languages form questions with intonation alone, but English usually requires inversion (Are you ready?) or do-support (Do you like coffee?). Skip the structure and your questions sound like uncertain statements.
Questions in English use inversion of subject and an auxiliary (Can she dance?) or do-support when no auxiliary is present (Does the milk go in the fridge?). Yes/no questions, wh-questions, negative questions, and tag questions all share this machinery.
Subjunctive mood
If you've heard if I were you and wondered why it's not if I was you — you've met the past subjunctive. English barely marks the subjunctive anymore, but in formal writing and a few stock phrases, getting it right (or wrong) is one of the clearest signals of a careful writer. I demand that he be present. / If I were richer. — both subjunctive, both reading as wrong if you swap them out.
The subjunctive mood marks hypothetical or counterfactual contexts. Two main forms: present subjunctive in that-clauses after verbs of recommendation (I suggest that he go) and past subjunctive were in unreal conditionals (If I were you). Mostly invisible in modern English, but unmistakable when present.
C1 | Advanced
If you've ever sat through a lecture in English, written a complaint letter, or argued a point in a meeting and come out feeling actually understood — not just tolerated — you've felt what C1 looks like. The level matters because it's where most universities, certifications, and skilled-work environments draw their language line.
C1 is the advanced level in the CEFR framework, demanding fluent and flexible language: inversion for emphasis, mixed and advanced conditionals, formal subjunctive, cleft sentences, and complex nominal phrases — all used appropriately across registers.
Difficulty: Hard
If easy and medium questions are clicking but you still feel exposed in real conversation or formal writing, you've outgrown the basics. Hard material is where the gaps you didn't know you had show up: the distractor that "sounds right", the rule that interacts with another rule, the case where context changes the answer. It's where genuine fluency is built.
The Hard difficulty tag marks upper-intermediate to advanced challenges — typically B2 and above. Interacting rules, edge cases, plausible distractors, and contexts that require genuine understanding rather than surface pattern-matching.