English verb conjugation
CAN WRITE

Irregular verb: write - wrote - written

Affirmation

Simple form	V-ing form
I can write you can write he can write we can write you can write they can write	I can be writing you can be writing he can be writing we can be writing you can be writing they can be writing
Perfect	V-ing perfect
I can have written you can have written he can have written we can have written you can have written they can have written	I can have been writing you can have been writing he can have been writing we can have been writing you can have been writing they can have been writing

Negation

Simple form	V-ing form
I can't write you can't write he can't write we can't write you can't write they can't write	I can't be writing you can't be writing he can't be writing we can't be writing you can't be writing they can't be writing
Perfect	V-ing perfect
I can't have written you can't have written he can't have written we can't have written you can't have written they can't have written	I can't have been writing you can't have been writing he can't have been writing we can't have been writing you can't have been writing they can't have been writing

Interrogative form

Simple form	V-ing form
can I write? can you write? can he write? can we write? can you write? can they write?	can I be writing? can you be writing? can he be writing? can we be writing? can you be writing? can they be writing?
Perfect	V-ing perfect
can I have written? can you have written? can he have written? can we have written? can you have written? can they have written?	can I have been writing? can you have been writing? can he have been writing? can we have been writing? can you have been writing? can they have been writing?

Interro-negative form

Simple form	V-ing form
can't I write? can't you write? can't he write? can't we write? can't you write? can't they write?	can't I be writing? can't you be writing? can't he be writing? can't we be writing? can't you be writing? can't they be writing?
Perfect	V-ing perfect
can't I have written? can't you have written? can't he have written? can't we have written? can't you have written? can't they have written?	can't I have been writing? can't you have been writing? can't he have been writing? can't we have been writing? can't you have been writing? can't they have been writing?