English verb conjugation COULD SUPERSEDE

Regular verb: supersede - superseded - superseded

Affirmation

Simple form

I could supersede
you could supersede
she could supersede
we could supersede
you could supersede
they could supersede

V-ing form

I could be superseding
you could be superseding
she could be superseding
we could be superseding
you could be superseding
they could be superseding

Perfect

I could have superseded
you could have superseded
she could have superseded
we could have superseded
you could have superseded
they could have superseded

V-ing perfect

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

Negation

Simple form

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

V-ing form

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

Perfect

I couldn't have superseded
you couldn't have superseded
she couldn't have superseded
we couldn't have superseded
you couldn't have superseded
they couldn't have superseded

V-ing perfect

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

Interrogative form

Simple form

could I supersede?
could you supersede?
could she supersede?
could we supersede?
could you supersede?
could they supersede?

V-ing form

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

Perfect

could I have superseded?
could you have superseded?
could she have superseded?
could we have superseded?
could you have superseded?
could they have superseded?

V-ing perfect

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

Interro-negative form

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

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