Предложение We have writhen the ex abready нужно написать в разных ременах )

Present simple-I write exercises every day

Past simple-I wrote exercises yesterday

Future simple-I will write exercises tomorrow

Present continuous-I'm writing an exercise now

Past continuous-I was writing an exercise when my friend came to me.

Future continuous-I will be writing an exercise at 5 pm tomorrow.

Present Perfect-I have already written the exercise.

Past. Perfect-I had written an exercise before my mum came from work.

Present perfect continuous -I have been writing an exercise for half an hour.

Past Perfect Continuous-I had been writing in exercise for half an hour when my mom came from work.

Future perfect,-I will have written an exercise by 2 pm tomorrow