English verb conjugation
CAN ESTABLISH

Regular verb: establish - established - established

Affirmation

Simple form	V-ing form
I can establish you can establish he can establish we can establish you can establish they can establish	I can be establishing you can be establishing he can be establishing we can be establishing you can be establishing they can be establishing
Perfect	V-ing perfect
I can have established you can have established he can have established we can have established you can have established they can have established	I can have been establishing you can have been establishing he can have been establishing we can have been establishing you can have been establishing they can have been establishing

Negation

Simple form	V-ing form
I cannot establish you cannot establish he cannot establish we cannot establish you cannot establish they cannot establish	I cannot be establishing you cannot be establishing he cannot be establishing we cannot be establishing you cannot be establishing they cannot be establishing
Perfect	V-ing perfect
I cannot have established you cannot have established he cannot have established we cannot have established you cannot have established they cannot have established	I cannot have been establishing you cannot have been establishing he cannot have been establishing we cannot have been establishing you cannot have been establishing they cannot have been establishing

Interrogative form

Simple form	V-ing form
can I establish? can you establish? can he establish? can we establish? can you establish? can they establish?	can I be establishing? can you be establishing? can he be establishing? can we be establishing? can you be establishing? can they be establishing?
Perfect	V-ing perfect
can I have established? can you have established? can he have established? can we have established? can you have established? can they have established?	can I have been establishing? can you have been establishing? can he have been establishing? can we have been establishing? can you have been establishing? can they have been establishing?

Interro-negative form

Simple form	V-ing form
can I not establish? can you not establish? can he not establish? can we not establish? can you not establish? can they not establish?	can I not be establishing? can you not be establishing? can he not be establishing? can we not be establishing? can you not be establishing? can they not be establishing?
Perfect	V-ing perfect
can I not have established? can you not have established? can he not have established? can we not have established? can you not have established? can they not have established?	can I not have been establishing? can you not have been establishing? can he not have been establishing? can we not have been establishing? can you not have been establishing? can they not have been establishing?