Complete the stressed student's morning reminders by dragging the correct words into the blanks.
I must remember to buy coffee before my morning lecture. The syllabus says that everyone has to complete the online quiz before class begins.
I must remember to buy coffee before my morning lecture.
The modal verb must is followed directly by a base verb (like remember). If we wanted to use have, we would need to include "to" (I have to remember).
The syllabus says that everyone has to complete the online quiz before class begins.
The pronoun "everyone" is singular, so it requires the singular verb form has to. "Have to" is plural, and "musts" is not a real word (modal verbs never take an -s ending!).
Modal verb
If you've ever struggled with the difference between You must do this (strong command) and You should do this (advice) — or It might rain (possible) and It will rain (certain) — you've felt how much modal verbs do in English. They're how the language signals certainty, obligation, possibility, and politeness, and getting them right is what stops your speech from sounding either pushy or wishy-washy.
A modal verb is an auxiliary — can, could, may, might, must, shall, should, will, would — adding meaning around ability, permission, possibility, obligation, or speculation. Always followed by the bare infinitive (can swim, never can to swim), and never inflected for person.
Grammatical number
If you've ever written The data shows and been told it should be The data show — or written The list of items are when it should be is — you've hit a grammatical-number trap. Number agreement looks simple in theory (one takes singular, more than one takes plural) but English has enough irregular plurals and tricky collective nouns to keep you on your toes.
Grammatical number is the singular/plural distinction on nouns, pronouns, and verbs. Most English nouns form plurals with -(e)s; pronouns have irregular pairs (I/we, he/they); verbs agree with their subject (He goes vs They go).
English Grammar Basics
If grammar feels like a tangle of rules you can never quite remember, the fix isn't more advanced material — it's making the foundations automatic. The English Grammar Basics tag is where you do that: the building blocks every other topic stands on. Get these right and the rest stops feeling random.
It marks quizzes and explainers covering the core of English: nouns, verbs, adjectives, adverbs, prepositions, conjunctions, tenses, voice, mood, and basic sentence structure. Useful whether you're a beginner or refreshing rusty knowledge.
A2 | Elementary | Pre-intermediate
If you can order coffee, ask for directions, and tell someone what you did yesterday — but struggle the moment the conversation drifts into anything abstract — you're operating at A2. Knowing this matters: A2 is the level where most learners plateau because they reach for B2 material too early and burn out. Stay here and your foundations get unbreakable.
A2 is the elementary level in the CEFR framework, covering routine communication and the first wave of real grammar: past simple and continuous, present perfect, basic modal verbs, first conditional, and common verb-pattern rules.
Difficulty: Easy
If a textbook leaves you confused, sometimes the issue isn't the topic — it's that the practice material is layered with extra complications. Filtering by Easy strips that away. You get one rule at a time, in plain everyday language, with no trick questions. It's how you make a shaky foundation solid before stacking more on top.
The Easy difficulty tag marks beginner-level questions and challenges — typically A1 or early A2. Single-rule focus, short sentences, common vocabulary, one clear correct answer.