English verb conjugation COULD RIVET

Regular verb: rivet - riveted - riveted

Affirmation

Simple form

I could rivet
you could rivet
she could rivet
we could rivet
you could rivet
they could rivet

V-ing form

I could be riveting
you could be riveting
she could be riveting
we could be riveting
you could be riveting
they could be riveting

Perfect

I could have riveted
you could have riveted
she could have riveted
we could have riveted
you could have riveted
they could have riveted

V-ing perfect

I could have been riveting
you could have been riveting
she could have been riveting
we could have been riveting
you could have been riveting
they could have been riveting

Negation

Simple form

I couldn't rivet
you couldn't rivet
she couldn't rivet
we couldn't rivet
you couldn't rivet
they couldn't rivet

V-ing form

I couldn't be riveting
you couldn't be riveting
she couldn't be riveting
we couldn't be riveting
you couldn't be riveting
they couldn't be riveting

Perfect

I couldn't have riveted
you couldn't have riveted
she couldn't have riveted
we couldn't have riveted
you couldn't have riveted
they couldn't have riveted

V-ing perfect

I couldn't have been riveting
you couldn't have been riveting
she couldn't have been riveting
we couldn't have been riveting
you couldn't have been riveting
they couldn't have been riveting

Interrogative form

Simple form

could I rivet?
could you rivet?
could she rivet?
could we rivet?
could you rivet?
could they rivet?

V-ing form

could I be riveting?
could you be riveting?
could she be riveting?
could we be riveting?
could you be riveting?
could they be riveting?

Perfect

could I have riveted?
could you have riveted?
could she have riveted?
could we have riveted?
could you have riveted?
could they have riveted?

V-ing perfect

could I have been riveting?
could you have been riveting?
could she have been riveting?
could we have been riveting?
could you have been riveting?
could they have been riveting?

Interro-negative form

Simple form

couldn't I rivet?
couldn't you rivet?
couldn't she rivet?
couldn't we rivet?
couldn't you rivet?
couldn't they rivet?

V-ing form

couldn't I be riveting?
couldn't you be riveting?
couldn't she be riveting?
couldn't we be riveting?
couldn't you be riveting?
couldn't they be riveting?

Perfect

couldn't I have riveted?
couldn't you have riveted?
couldn't she have riveted?
couldn't we have riveted?
couldn't you have riveted?
couldn't they have riveted?

V-ing perfect

couldn't I have been riveting?
couldn't you have been riveting?
couldn't she have been riveting?
couldn't we have been riveting?
couldn't you have been riveting?
couldn't they have been riveting?

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