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Sentence Correction: Tenses - Verb Forms

Insufficient market research to drive investors away from the proposed venture. 

This answer choice is grammatically incorrect. Both has and drove are conjugated verbs: has is the present form (V1) of have, and drove is the past form (V2) of drive. However, only the first verb of a sentence should be conjugated. The second verb cannot be conjugated.

Incorrect: Competition has drove investors away.
Correct Competition has driven investors away.

Correct!

This answer choice correctly uses a conjugated verb - drives

This answer choice is grammatically incorrect. The singular subject research does not agree with the plural verb drive.

This answer choice is grammatically incorrect. The first verb of a sentence must be conjugated, and  driven - the third form of drive - is unconjugated.

This answer choice is grammatically incorrect. The first verb of a sentence must be conjugated, and  to drive is unconjugated.

to drive
driven
drive
drives
has drove