English verb conjugation COULD ADD

Regular verb: add - added - added

Affirmation

Simple form

I could add
you could add
he could add
we could add
you could add
they could add

V-ing form

I could be adding
you could be adding
he could be adding
we could be adding
you could be adding
they could be adding

Perfect

I could have added
you could have added
he could have added
we could have added
you could have added
they could have added

V-ing perfect

I could have been adding
you could have been adding
he could have been adding
we could have been adding
you could have been adding
they could have been adding

Negation

Simple form

I couldn't add
you couldn't add
he couldn't add
we couldn't add
you couldn't add
they couldn't add

V-ing form

I couldn't be adding
you couldn't be adding
he couldn't be adding
we couldn't be adding
you couldn't be adding
they couldn't be adding

Perfect

I couldn't have added
you couldn't have added
he couldn't have added
we couldn't have added
you couldn't have added
they couldn't have added

V-ing perfect

I couldn't have been adding
you couldn't have been adding
he couldn't have been adding
we couldn't have been adding
you couldn't have been adding
they couldn't have been adding

Interrogative form

Simple form

could I add?
could you add?
could he add?
could we add?
could you add?
could they add?

V-ing form

could I be adding?
could you be adding?
could he be adding?
could we be adding?
could you be adding?
could they be adding?

Perfect

could I have added?
could you have added?
could he have added?
could we have added?
could you have added?
could they have added?

V-ing perfect

could I have been adding?
could you have been adding?
could he have been adding?
could we have been adding?
could you have been adding?
could they have been adding?

Interro-negative form

Simple form

couldn't I add?
couldn't you add?
couldn't he add?
couldn't we add?
couldn't you add?
couldn't they add?

V-ing form

couldn't I be adding?
couldn't you be adding?
couldn't he be adding?
couldn't we be adding?
couldn't you be adding?
couldn't they be adding?

Perfect

couldn't I have added?
couldn't you have added?
couldn't he have added?
couldn't we have added?
couldn't you have added?
couldn't they have added?

V-ing perfect

couldn't I have been adding?
couldn't you have been adding?
couldn't he have been adding?
couldn't we have been adding?
couldn't you have been adding?
couldn't they have been adding?

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