English verb conjugation COULD RIVET

Regular verb: rivet - riveted - riveted

Affirmation

Simple form

I could rivet
you could rivet
he could rivet
we could rivet
you could rivet
they could rivet

V-ing form

I could be riveting
you could be riveting
he could be riveting
we could be riveting
you could be riveting
they could be riveting

Perfect

I could have riveted
you could have riveted
he 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
he could have been riveting
we could have been riveting
you could have been riveting
they could have been riveting

Negation

Simple form

I could not rivet
you could not rivet
he could not rivet
we could not rivet
you could not rivet
they could not rivet

V-ing form

I could not be riveting
you could not be riveting
he could not be riveting
we could not be riveting
you could not be riveting
they could not be riveting

Perfect

I could not have riveted
you could not have riveted
he could not have riveted
we could not have riveted
you could not have riveted
they could not have riveted

V-ing perfect

I could not have been riveting
you could not have been riveting
he could not have been riveting
we could not have been riveting
you could not have been riveting
they could not have been riveting

Interrogative form

Simple form

could I rivet?
could you rivet?
could he rivet?
could we rivet?
could you rivet?
could they rivet?

V-ing form

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

Perfect

could I have riveted?
could you have riveted?
could he 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 he have been riveting?
could we have been riveting?
could you have been riveting?
could they have been riveting?

Interro-negative form

Simple form

could I not rivet?
could you not rivet?
could he not rivet?
could we not rivet?
could you not rivet?
could they not rivet?

V-ing form

could I not be riveting?
could you not be riveting?
could he not be riveting?
could we not be riveting?
could you not be riveting?
could they not be riveting?

Perfect

could I not have riveted?
could you not have riveted?
could he not have riveted?
could we not have riveted?
could you not have riveted?
could they not have riveted?

V-ing perfect

could I not have been riveting?
could you not have been riveting?
could he not have been riveting?
could we not have been riveting?
could you not have been riveting?
could they not have been riveting?

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