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 can't establish you can't establish he can't establish we can't establish you can't establish they can't establish	I can't be establishing you can't be establishing he can't be establishing we can't be establishing you can't be establishing they can't be establishing
Perfect	V-ing perfect
I can't have established you can't have established he can't have established we can't have established you can't have established they can't have established	I can't have been establishing you can't have been establishing he can't have been establishing we can't have been establishing you can't have been establishing they can't 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't I establish? can't you establish? can't he establish? can't we establish? can't you establish? can't they establish?	can't I be establishing? can't you be establishing? can't he be establishing? can't we be establishing? can't you be establishing? can't they be establishing?
Perfect	V-ing perfect
can't I have established? can't you have established? can't he have established? can't we have established? can't you have established? can't they have established?	can't I have been establishing? can't you have been establishing? can't he have been establishing? can't we have been establishing? can't you have been establishing? can't they have been establishing?