English verb conjugation COULD ASSERT

Regular verb: assert - asserted - asserted

Affirmation

Simple form

I could assert
you could assert
he could assert
we could assert
you could assert
they could assert

V-ing form

I could be asserting
you could be asserting
he could be asserting
we could be asserting
you could be asserting
they could be asserting

Perfect

I could have asserted
you could have asserted
he could have asserted
we could have asserted
you could have asserted
they could have asserted

V-ing perfect

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

Negation

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

Interrogative form

Simple form

could I assert?
could you assert?
could he assert?
could we assert?
could you assert?
could they assert?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

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