Question

he thanked me for what i ____.
(have done,had done,have been doing)

Answer 1

Hey dear!
________

Question : 

He thanked me for what I ____. (have done, had done, have been doing)

Answer - He thanked me for what I __had done__.


Explanation- The first verb 'thanked' is in past tense so, then the option 'had
done' is correct.


Note: Any problem in understanding, feel free to ask.

_____________________________________________________

Answer 2

He thanked me for what I had done.

Explanation:

• There are two action words in the given sentence.
• The second action is 'thanked' which is the result of the first action 'had done'.
• Since the second action has been started and completed in the past, therefore, the tense to be used in the first action will be past perfect tense.
• 'Had done' will be the correct verb to be used here.

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Simple past or past continuous tense.​

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