English verb conjugation COULD EXSERT

Regular verb: exsert - exserted - exserted

Affirmation

Simple form

I could exsert
you could exsert
he could exsert
we could exsert
you could exsert
they could exsert

V-ing form

I could be exserting
you could be exserting
he could be exserting
we could be exserting
you could be exserting
they could be exserting

Perfect

I could have exserted
you could have exserted
he could have exserted
we could have exserted
you could have exserted
they could have exserted

V-ing perfect

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

Negation

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

Interrogative form

Simple form

could I exsert?
could you exsert?
could he exsert?
could we exsert?
could you exsert?
could they exsert?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

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