English verb conjugation COULD PREBILL

Regular verb: prebill - prebilled - prebilled

Affirmation

Simple form

I could prebill
you could prebill
she could prebill
we could prebill
you could prebill
they could prebill

V-ing form

I could be prebilling
you could be prebilling
she could be prebilling
we could be prebilling
you could be prebilling
they could be prebilling

Perfect

I could have prebilled
you could have prebilled
she could have prebilled
we could have prebilled
you could have prebilled
they could have prebilled

V-ing perfect

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

Negation

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

Interrogative form

Simple form

could I prebill?
could you prebill?
could she prebill?
could we prebill?
could you prebill?
could they prebill?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

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