English verb conjugation COULD SIP

Regular verb: sip - sipped - sipped

Affirmation

Simple form

I could sip
you could sip
he could sip
we could sip
you could sip
they could sip

V-ing form

I could be sipping
you could be sipping
he could be sipping
we could be sipping
you could be sipping
they could be sipping

Perfect

I could have sipped
you could have sipped
he could have sipped
we could have sipped
you could have sipped
they could have sipped

V-ing perfect

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

Negation

Simple form

I could not sip
you could not sip
he could not sip
we could not sip
you could not sip
they could not sip

V-ing form

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

Perfect

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

V-ing perfect

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

Interrogative form

Simple form

could I sip?
could you sip?
could he sip?
could we sip?
could you sip?
could they sip?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

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