составить предложение из present simple, present continuous, present perfect or present perfect continuous

I write a letter every day.Present Simple

I am writing a letter now. Present Continuous

I have written a letter. Present Perfect

I have been writing a letter for two hours. Present Perfect Continuous

I wrote a letter yesterday. Past Simple

I was writing a letter yesterday at 5. Past Continuous

I had written a letter by the time you came. Past Perfect

I had been writing a letter for two hours by 5 o’clock. Past Perfect Continuous

I will write a letter tomorrow . Future Simple

I will be writing a letter tomorrow at 5. Future Continuous

I will have written a letter by the time you come. Future Perfect

I will have been writing a letter for two hours by 5 o’clock. Future Perfect continuous