The sentence is expressing a desire or a regret for something that is not true in the present moment. The pattern is "I wish I could ..." so the correct answer is could speak.
Subjunctive Mood
The subjunctive mood in English is used to form sentences that do not describe known objective facts, but rather wishes or hypothetical suppositions. These include statements about one's state of mind, such as opinion, belief, purpose, intention, or desire. The subjunctive mood, such as She suggests that he speak English, contrasts with the indicative mood, which is used for statements of fact, such as He speaks English.
In Modern English, the subjunctive form of a verb often looks identical to the indicative form, and thus subjunctives are not a very visible grammatical feature of English. For most verbs, the only distinct subjunctive form is found in the third person singular of the present tense, where the subjunctive lacks the -s ending: It is necessary that he see a doctor (contrasted with the indicative he sees). The verb be, however, has not only a distinct present subjunctive (be, as in I suggest that he be removed) but also a past subjunctive were (as in If he were rich, ...).
These two tenses of the subjunctive have no particular connection in meaning with present and past time. Terminology varies; sometimes what is called the present subjunctive here is referred to simply as the subjunctive, and the form were may be treated just as an alternative irrealis form of was rather than a past subjunctive.
Another case where present-subjunctive forms are distinguished from indicatives is when they are negated: compare I recommend that they not enter the competition (subjunctive) with I hope that they do not enter the competition (indicative).
Past Subjunctive Mood
The only distinct past subjunctive form in English (i.e., form that differs from the corresponding past indicative) is were, which differs when used with a first or third person singular subject (where the indicative form is was). As with the present subjunctive, the name past subjunctive refers to the form of the verb rather than its meaning; it need not (and in fact usually does not) refer to past time. The main use of the past subjunctive form, were, which is also known as the irrealis is in counterfactual if clauses:
- If I were your wife, I would put poison in your coffee. [Attributed to Lady Astor, speaking to Winston Churchill]
The simple (indicative) past form was is very common in sentences of this type, though the Random House College Dictionary states "Although the [were] subjunctive seems to be disappearing from the speech of many, its proper use is still a mark of the educated speaker." When were is used, an inverted form without if is possible; this is not possible with was.
A common expression involving were is if I were you. The same principles of usage apply to the compound past subjunctive form were to..., which appears in second conditional condition clauses, usually with hypothetical future reference:
- If she were to go... or Were she to go... (equivalent to if she went)
The past subjunctive form may be used similarly to express counterfactual conditions after suppose, as if, as though, unless, imagine etc.
- Suppose that I were there now.
- She looks as though she were going to kill him.
- Try to imagine he were here.
- Try to imagine a tool that made that easy for citizens.
There is also the set expression as it were.
The past subjunctive can also be used in some that clauses expressing a wish contrary to fact or unlikely to be fulfilled:
- I wish [that] he were here now.
- If only the door were unlocked.
- I would rather [that] she were released.
- Would that it were true!
- Oh that it were so.
However, the use of the subjunctive with words such as wish is seldom obligatory. The example with would rather can be cast in the present subjunctive, expressing greater confidence that the action is feasible:
- I would rather she be released.
Modal Verb
English has the modal verbs can, could, may, might, must, shall, should, will, would, and also (depending on classification adopted) ought (to), dare, need, had (better), used (to). These do not add -s for the third-person singular, and they do not form infinitives or participles; the only inflection they undergo is that to a certain extent could, might, should and would function as preterites (past tenses) of can, may, shall and will respectively.
A modal verb can serve as the finite verb introducing a verb catena, as in "he might have been injured then". These generally express some form of modality (possibility, obligation, etc.), although will and would (and sometimes shall and should) can serve – among their other uses – to express future time reference and conditional mood.
B2 / Upper Intermediate
A CEFR B2 level English language user is considered to be at Upper intermediate level. A B2 level English language user is expected to have the following abilities:
- Can understand the main ideas of complex text on both concrete and abstract topics, including technical discussions in their field of specialization.
- Can interact with a degree of fluency and spontaneity that makes regular interaction with native speakers quite possible without strain for either party.
- Can produce clear, detailed text on a wide range of subjects and explain a viewpoint on a topical issue giving the advantages and disadvantages of various options.
- Can understand a wide range of demanding, longer texts, and recognize implicit meaning.
- Can express themselves fluently and spontaneously without much obvious searching for expressions.
- Can use language flexibly and effectively for social, academic and professional purposes.
- Can produce clear, well-structured, detailed text on complex subjects, showing controlled use of organizational patterns, connectors and cohesive devices.
In summary, at B2 level, English language users are expected to have a high level of fluency and comprehension, with the ability to understand and produce complex language. They should be able to communicate effectively in a variety of settings, both social and professional. They should be able to use the language flexibly and with a high degree of accuracy.
Difficulty: Medium
Medium difficulty. Difficulty levels represent author's opinion about how hard a question or challenge is.