English verb conjugation COULD MODULATE

Regular verb: modulate - modulated - modulated

Affirmation

Simple form

I could modulate
you could modulate
he could modulate
we could modulate
you could modulate
they could modulate

V-ing form

I could be modulating
you could be modulating
he could be modulating
we could be modulating
you could be modulating
they could be modulating

Perfect

I could have modulated
you could have modulated
he could have modulated
we could have modulated
you could have modulated
they could have modulated

V-ing perfect

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

Negation

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

Interrogative form

Simple form

could I modulate?
could you modulate?
could he modulate?
could we modulate?
could you modulate?
could they modulate?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

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