Examkin

Question

Difficulty: EasyVerbs, Tenses, and Aspect

Complete the sentence below by supplying the correct form of the verb to complete the statement.

Answer:Although the debate team members have been preparing all morning, they 【have not finished】 their presentation yet.

Answer

have not finished (or haven't finished / have not completed / haven't completed)
The adverb 'yet' is used in negative sentences to refer to something that has not happened up to the present moment. Because the initial clause uses the present perfect continuous tense ('have been preparing'), the main clause must use the negative present perfect form ('have not finished' or 'have not completed') to maintain sequence of tense and aspect.

Step-by-Step Solution

1
Identify the time adverbial in the sentence.
The word 'yet' at the end of the clause indicates an action expected to happen before now, but which has not happened up to the present moment.
The adverb 'yet' is typically paired with negative present perfect constructions.
2
Select the correct tense and aspect of the verb to complement 'yet'.
The present perfect negative form 'have not finished' or 'have not completed' is required.
Simple past forms (e.g., 'did not finish') or past perfect forms (e.g., 'had not finished') conflict with the present timeframe established by 'yet' and 'have been preparing'.

Key Concept

Present Perfect Tense with Aspectual Adverbs
Rate this question

Topics

Verbs, Tenses, and Aspect

More questions from this topic