Please do it

Dear Student, 

1.  Simple Present: I write a novel
     Present Continuous: I am writing a novel
     Present Perfect: I have written a novel.
     Present Perfect Continuous: I have been writing a novel. 
2.  Simple Present: The students cheer their friends.
     Present Continuous: The students are cheering their friends.
     Present Perfect : The students have cheered their friends.
     Present Perfect Continuous:  The students have been cheering their friends.

Please post the remaining questions in separate threads.

Regards,