The Conjugator
English verb conjugation
COULD MODIFY

Regular verb: modify - modified - modified

Affirmation

Simple form

V-ing form

I could modify
you could modify
she could modify
we could modify
you could modify
they could modify
I could be modifying
you could be modifying
she could be modifying
we could be modifying
you could be modifying
they could be modifying

Perfect

V-ing perfect

I could have modified
you could have modified
she could have modified
we could have modified
you could have modified
they could have modified
I could have been modifying
you could have been modifying
she could have been modifying
we could have been modifying
you could have been modifying
they could have been modifying

Negation

Simple form

V-ing form

I couldn't modify
you couldn't modify
she couldn't modify
we couldn't modify
you couldn't modify
they couldn't modify
I couldn't be modifying
you couldn't be modifying
she couldn't be modifying
we couldn't be modifying
you couldn't be modifying
they couldn't be modifying

Perfect

V-ing perfect

I couldn't have modified
you couldn't have modified
she couldn't have modified
we couldn't have modified
you couldn't have modified
they couldn't have modified
I couldn't have been modifying
you couldn't have been modifying
she couldn't have been modifying
we couldn't have been modifying
you couldn't have been modifying
they couldn't have been modifying

Interrogative form

Simple form

V-ing form

could I modify?
could you modify?
could she modify?
could we modify?
could you modify?
could they modify?
could I be modifying?
could you be modifying?
could she be modifying?
could we be modifying?
could you be modifying?
could they be modifying?

Perfect

V-ing perfect

could I have modified?
could you have modified?
could she have modified?
could we have modified?
could you have modified?
could they have modified?
could I have been modifying?
could you have been modifying?
could she have been modifying?
could we have been modifying?
could you have been modifying?
could they have been modifying?

Interro-negative form

Simple form

V-ing form

couldn't I modify?
couldn't you modify?
couldn't she modify?
couldn't we modify?
couldn't you modify?
couldn't they modify?
couldn't I be modifying?
couldn't you be modifying?
couldn't she be modifying?
couldn't we be modifying?
couldn't you be modifying?
couldn't they be modifying?

Perfect

V-ing perfect

couldn't I have modified?
couldn't you have modified?
couldn't she have modified?
couldn't we have modified?
couldn't you have modified?
couldn't they have modified?
couldn't I have been modifying?
couldn't you have been modifying?
couldn't she have been modifying?
couldn't we have been modifying?
couldn't you have been modifying?
couldn't they have been modifying?