English verb conjugation COULD ROISTER

Regular verb: roister - roistered - roistered

Affirmation

Simple form

I could roister
you could roister
he could roister
we could roister
you could roister
they could roister

V-ing form

I could be roistering
you could be roistering
he could be roistering
we could be roistering
you could be roistering
they could be roistering

Perfect

I could have roistered
you could have roistered
he could have roistered
we could have roistered
you could have roistered
they could have roistered

V-ing perfect

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

Negation

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

Interrogative form

Simple form

could I roister?
could you roister?
could he roister?
could we roister?
could you roister?
could they roister?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

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