Question

Identify if the verb form is correct or not. If not, correct it:

Bob is a friend of mine. I know him for a long time.

• A. no correction
• B. have known
• C. have been knowing
• D. will know

Answer 1

The correct option is B have known

The present perfect is a verb tense which is used to show that an action has taken place once or many times before now or past experiences relevant in the present, here, knowing Bob. The present perfect is formed using has/have + past participle, here, "have known". Hence, Option B is correct.

The rest of the options do not adhere to this situation.

Option A states a present action but it the action started in the past 'for a long time.

Option C states a continuous action, but 'knowing' is not a continuous action.

Option D states an action yet to happen.

Hence these options are incorrect.