Question

you will fell feel the joy of having contaibuted simple past tense ​

Answer 1

The present perfect tense is written as: have/has + past participle of the verb. In the given sentence, "received" is the simple past tense of the infinitive "to receive". Moreover, the sentence is in first person singular which means that "have" must be used here. Moreover, the present perfect cannot be used when you are being specific about when the action/event happened (a week ago). Thus, the resulting sentence is: I have received his letter

Answer 2

Answer:

You have felt the joy of having contributed

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