English verb conjugation COULD INVOICE

Regular verb: invoice - invoiced - invoiced

Affirmation

Simple form

I could invoice
you could invoice
he could invoice
we could invoice
you could invoice
they could invoice

V-ing form

I could be invoicing
you could be invoicing
he could be invoicing
we could be invoicing
you could be invoicing
they could be invoicing

Perfect

I could have invoiced
you could have invoiced
he could have invoiced
we could have invoiced
you could have invoiced
they could have invoiced

V-ing perfect

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

Negation

Simple form

I could not invoice
you could not invoice
he could not invoice
we could not invoice
you could not invoice
they could not invoice

V-ing form

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

Perfect

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

V-ing perfect

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

Interrogative form

Simple form

could I invoice?
could you invoice?
could he invoice?
could we invoice?
could you invoice?
could they invoice?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

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