Question

i am writing a letter?? (Change in to continuese tense)​

Answer 1

Answer: This may help you

Explanation:

I am writing a letter. - Present continuous tense

(Change in to continuese tense)

=> I was writing a letter. - Past continuous tense

I will be writing a letter. - Future continuous tense

Answer 2

Answer:
In Past continuous, the sentence is “I was writing a letter.”
In Present continuous, the sentence is the same as yours.
In Future Continuous, the sentence is “I will be writing a letter.”