English verb conjugation COULD SCUFF

Regular verb: scuff - scuffed - scuffed

Affirmation

Simple form

I could scuff
you could scuff
she could scuff
we could scuff
you could scuff
they could scuff

V-ing form

I could be scuffing
you could be scuffing
she could be scuffing
we could be scuffing
you could be scuffing
they could be scuffing

Perfect

I could have scuffed
you could have scuffed
she could have scuffed
we could have scuffed
you could have scuffed
they could have scuffed

V-ing perfect

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

Negation

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

Interrogative form

Simple form

could I scuff?
could you scuff?
could she scuff?
could we scuff?
could you scuff?
could they scuff?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

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