English verb conjugation COULD GUARANTEE

Regular verb: guarantee - guaranteed - guaranteed

Affirmation

Simple form

I could guarantee
you could guarantee
he could guarantee
we could guarantee
you could guarantee
they could guarantee

V-ing form

I could be guaranteeing
you could be guaranteeing
he could be guaranteeing
we could be guaranteeing
you could be guaranteeing
they could be guaranteeing

Perfect

I could have guaranteed
you could have guaranteed
he could have guaranteed
we could have guaranteed
you could have guaranteed
they could have guaranteed

V-ing perfect

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

Negation

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

Interrogative form

Simple form

could I guarantee?
could you guarantee?
could he guarantee?
could we guarantee?
could you guarantee?
could they guarantee?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

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