Question

couldn't you .......yours vat before driving it to the exhibition
A. washed
B. washing
c. been washing
D. have washed​

Answer 1

ANSWER:

D. have washed

Answer 2

Couldn't you have washed your vat before driving it to the exhibition.

• The verbs in a sentence are the action words that describe what the subject is doing. Verbs, which describe what is happening, are the primary component of a sentence or phrase together with nouns. In fact, even the simplest sentences—like Maria's song—have a verb because complete thoughts cannot be adequately expressed without one. Actually, a verb can be used to begin a sentence on its own by implying the subject, which is usually you in examples like "Sing!" and "Drive!"
• Almost always, verbs follow a noun or pronoun. The term "subject" refers to certain nouns and pronouns.

Here, according to the given information, we are given that,

Couldn't you ...... your vat before driving it to the exhibition.

Here, the correct form of the verb will be,

Couldn't you have washed your vat before driving it to the exhibition.

Hence, the correct sentence is Couldn't you have washed your vat before driving it to the exhibition.

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