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

English verb conjugation COULD DISPROVE

Regular verb: disprove - disproved - disproved


Affirmation

Simple form
I could disprove
you could disprove
she could disprove
we could disprove
you could disprove
they could disprove
V-ing form
I could be disproving
you could be disproving
she could be disproving
we could be disproving
you could be disproving
they could be disproving
Perfect
I could have disproved
you could have disproved
she could have disproved
we could have disproved
you could have disproved
they could have disproved
V-ing perfect
I could have been disproving
you could have been disproving
she could have been disproving
we could have been disproving
you could have been disproving
they could have been disproving

Negation

Simple form
I couldn't disprove
you couldn't disprove
she couldn't disprove
we couldn't disprove
you couldn't disprove
they couldn't disprove
V-ing form
I couldn't be disproving
you couldn't be disproving
she couldn't be disproving
we couldn't be disproving
you couldn't be disproving
they couldn't be disproving
Perfect
I couldn't have disproved
you couldn't have disproved
she couldn't have disproved
we couldn't have disproved
you couldn't have disproved
they couldn't have disproved
V-ing perfect
I couldn't have been disproving
you couldn't have been disproving
she couldn't have been disproving
we couldn't have been disproving
you couldn't have been disproving
they couldn't have been disproving

Interrogative form

Simple form
could I disprove?
could you disprove?
could she disprove?
could we disprove?
could you disprove?
could they disprove?
V-ing form
could I be disproving?
could you be disproving?
could she be disproving?
could we be disproving?
could you be disproving?
could they be disproving?
Perfect
could I have disproved?
could you have disproved?
could she have disproved?
could we have disproved?
could you have disproved?
could they have disproved?
V-ing perfect
could I have been disproving?
could you have been disproving?
could she have been disproving?
could we have been disproving?
could you have been disproving?
could they have been disproving?

Interro-negative form

Simple form
couldn't I disprove?
couldn't you disprove?
couldn't she disprove?
couldn't we disprove?
couldn't you disprove?
couldn't they disprove?
V-ing form
couldn't I be disproving?
couldn't you be disproving?
couldn't she be disproving?
couldn't we be disproving?
couldn't you be disproving?
couldn't they be disproving?
Perfect
couldn't I have disproved?
couldn't you have disproved?
couldn't she have disproved?
couldn't we have disproved?
couldn't you have disproved?
couldn't they have disproved?
V-ing perfect
couldn't I have been disproving?
couldn't you have been disproving?
couldn't she have been disproving?
couldn't we have been disproving?
couldn't you have been disproving?
couldn't they have been disproving?