English verb conjugation COULD SCUM

Regular verb: scum - scummed - scummed

Affirmation

Simple form

I could scum
you could scum
he could scum
we could scum
you could scum
they could scum

V-ing form

I could be scumming
you could be scumming
he could be scumming
we could be scumming
you could be scumming
they could be scumming

Perfect

I could have scummed
you could have scummed
he could have scummed
we could have scummed
you could have scummed
they could have scummed

V-ing perfect

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

Negation

Simple form

I could not scum
you could not scum
he could not scum
we could not scum
you could not scum
they could not scum

V-ing form

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

Perfect

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

V-ing perfect

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

Interrogative form

Simple form

could I scum?
could you scum?
could he scum?
could we scum?
could you scum?
could they scum?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

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