English verb conjugation COULD PRESTRESS

Regular verb: prestress - prestressed - prestressed

Affirmation

Simple form

I could prestress
you could prestress
he could prestress
we could prestress
you could prestress
they could prestress

V-ing form

I could be prestressing
you could be prestressing
he could be prestressing
we could be prestressing
you could be prestressing
they could be prestressing

Perfect

I could have prestressed
you could have prestressed
he could have prestressed
we could have prestressed
you could have prestressed
they could have prestressed

V-ing perfect

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

Negation

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

Interrogative form

Simple form

could I prestress?
could you prestress?
could he prestress?
could we prestress?
could you prestress?
could they prestress?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

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