English Grammar and Usage

Show the tense

"Lucy" is a singular subject, so we use "has been talking" for the present perfect continuous tense. This tense is used to show that an action started in the past and has continued up to the present moment.

The question uses the present perfect continuous structure "Have you been + verb-ing" to ask about an ongoing activity (like dating or meeting someone) that has been happening recently. "Been seeing" fits this structure perfectly.

The present perfect continuous question form is "How long have you been + verb-ing?". Therefore, "been studying" is the correct grammatical choice to complete the sentence.

The present perfect continuous tense ("have been doing") is used to describe an action that started in the past and has continued up to the present, especially when referring to the period of time since a past event. Option A is grammatically incorrect after "have you". Options C and D do not form valid grammatical structures in this context.

Parallel structure requires that items in a list or series share the same grammatical form. In Option C, the three activities are all gerunds ("singing", "dating", "complaining"), making it perfectly parallel. Option B is not parallel because "no food" is a noun phrase that does not match the prepositional phrases "dishes in the sink" and "towels in the tub".

In this sentence, the main verb is "smiled". The words "surreptitiously" (meaning secretly) and "sadly" both end in "-ly" and function as adverbs that describe how he smiled.

The irregular verb 'catch' has 'caught' as both its past simple and past participle forms. Option C is the correct choice.

For the verb 'lie' (meaning to recline), the past tense is 'lay' and the past participle is 'lain'. Option C correctly completes this sequence.

The past simple of 'speak' is 'spoke', and the past participle is 'spoken'. Option C is the correct choice.

The past simple of 'wear' is 'wore', and the past participle is 'worn'. Option B correctly completes the sequence.

The verb "bring" is irregular, with "brought" serving as both the past simple and past participle form. Non-standard forms like "brung" or "brong" are grammatically incorrect.

The verb "begin" follows the i-a-u vowel change pattern: begin, began, begun. "Beginned" is incorrect because "begin" is an irregular verb.

To describe a state or action that will be happening at a specific point in the future, we use the future simple tense ("will be") or future continuous. "I will be in Tokyo" is grammatically correct and natural for expressing a future state.

The structure "have something done" is a causative construction used when someone arranges for another person to do a task for them. "Sarah is having some work done" is a grammatically correct sentence using this structure in the present continuous tense.