My favourite channel is Cartoon Network. I watch it, when I have some free time. I usually see "Adventure Time", "Regular Show" and "The Amazing World of Gumball" on Cartoon Network. This channel is really educational. You never get bored with it!
She is writing a letter Pr Cont.
She will write a letter Future Simple
She wrote a letter Past Simple
это необязательно, думаю, времен в английском много, но на всякий случай ещё 3:
She has written a letter Pr Perfect
She had written a letter Past Perfect
She will be writing a letter Future Cont
I don't have breakfast in the morning. I have just had a shower and gone quickly to work.