go off topic- deviate from-stray from
If you are writing and do not focus on the topic given , what would yuo say
you are off topic

you stray from the topic

you deviate from the topic ?

thank you

Question

go off topic- deviate from-stray from
If you are writing and do not focus on the topic given , what would yuo say
you are off topic

you stray from the topic

you deviate from the topic   ?

thank you

Answer

"You've gone off on a tangent."
"You've digressed."

"Deviate" and "stray" are correct as well, but pay attention to the verb form. In this context, you would use present continuous or present perfect.

Answer

"You're getting off topic."