English verb conjugation COULD INTRODUCE

Regular verb: introduce - introduced - introduced

Affirmation

Simple form

I could introduce
you could introduce
he could introduce
we could introduce
you could introduce
they could introduce

V-ing form

I could be introducing
you could be introducing
he could be introducing
we could be introducing
you could be introducing
they could be introducing

Perfect

I could have introduced
you could have introduced
he could have introduced
we could have introduced
you could have introduced
they could have introduced

V-ing perfect

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

Negation

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

Interrogative form

Simple form

could I introduce?
could you introduce?
could he introduce?
could we introduce?
could you introduce?
could they introduce?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

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