Question

i shall write a letter present Indefinite,​

Answer 1

Answer:

Hey friend,

This sentence in present perfect continuous tense is "I have been writing a letter. "

Explanation:

Answer 2

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$\huge{\underline{\underline{\underline{\sf{\pink{ﾑɳรᏇɛƦ \: ࿐}}}}}}$

I have been writing a letter.

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