English verb conjugation COULD MODIFY

Regular verb: modify - modified - modified

Affirmation

Simple form

I could modify
you could modify
she could modify
we could modify
you could modify
they could modify

V-ing form

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

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

V-ing perfect

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

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

V-ing form

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

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

V-ing perfect

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

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

V-ing form

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

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

V-ing perfect

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

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

V-ing form

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

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?

V-ing perfect

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?

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