Which of the following sentences would typically require the subjunctive?

• A. Yo vengomañana.
• B. Quiero que tú vengas.
• C. Él tiene un libro.
• D. Es cierto que llueve.

Answer: (B)

Subjunctive is used in the second clause after verbs that express desire, influence, or emotion when the action is not presented as a fact and refers to someone else’s actions. In the sentence “Quiero que tú vengas,” the speaker is expressing a wish, and the action of coming is not reality yet. That’s why the verb in the dependent clause is in the present subjunctive: “vengas.” It signals a non-real, desired outcome rather than a stated fact.

The other sentences are straightforward statements of fact. “Yo vengo mañana” simply says I will come tomorrow, so it uses the indicative. “Él tiene un libro” states a possession, also in the indicative. “Es cierto que llueve” asserts a fact, so the indicative is used here as well; the subjunctive would appear only in a context expressing doubt or possibility, like “Es posible que llueva.”