English verb conjugation COULD CONVINCE

Regular verb: convince - convinced - convinced

Affirmation

Simple form

I could convince
you could convince
he could convince
we could convince
you could convince
they could convince

V-ing form

I could be convincing
you could be convincing
he could be convincing
we could be convincing
you could be convincing
they could be convincing

Perfect

I could have convinced
you could have convinced
he could have convinced
we could have convinced
you could have convinced
they could have convinced

V-ing perfect

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

Negation

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

Interrogative form

Simple form

could I convince?
could you convince?
could he convince?
could we convince?
could you convince?
could they convince?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

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