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male gender | Modal : no | may | might | can | could | shall | should | will | would | must | ought to

English verb conjugation COULD ESTABLISH

Regular verb: establish - established - established


Affirmation

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

Negation

Simple form
I couldn't establish
you couldn't establish
she couldn't establish
we couldn't establish
you couldn't establish
they couldn't establish
V-ing form
I couldn't be establishing
you couldn't be establishing
she couldn't be establishing
we couldn't be establishing
you couldn't be establishing
they couldn't be establishing
Perfect
I couldn't have established
you couldn't have established
she couldn't have established
we couldn't have established
you couldn't have established
they couldn't have established
V-ing perfect
I couldn't have been establishing
you couldn't have been establishing
she couldn't have been establishing
we couldn't have been establishing
you couldn't have been establishing
they couldn't have been establishing

Interrogative form

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

Interro-negative form

Simple form
couldn't I establish?
couldn't you establish?
couldn't she establish?
couldn't we establish?
couldn't you establish?
couldn't they establish?
V-ing form
couldn't I be establishing?
couldn't you be establishing?
couldn't she be establishing?
couldn't we be establishing?
couldn't you be establishing?
couldn't they be establishing?
Perfect
couldn't I have established?
couldn't you have established?
couldn't she have established?
couldn't we have established?
couldn't you have established?
couldn't they have established?
V-ing perfect
couldn't I have been establishing?
couldn't you have been establishing?
couldn't she have been establishing?
couldn't we have been establishing?
couldn't you have been establishing?
couldn't they have been establishing?