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 couldn't sip
you couldn't sip
he couldn't sip
we couldn't sip
you couldn't sip
they couldn't sip

V-ing form

I couldn't be sipping
you couldn't be sipping
he couldn't be sipping
we couldn't be sipping
you couldn't be sipping
they couldn't be sipping

Perfect

I couldn't have sipped
you couldn't have sipped
he couldn't have sipped
we couldn't have sipped
you couldn't have sipped
they couldn't have sipped

V-ing perfect

I couldn't have been sipping
you couldn't have been sipping
he couldn't have been sipping
we couldn't have been sipping
you couldn't have been sipping
they couldn't 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

couldn't I sip?
couldn't you sip?
couldn't he sip?
couldn't we sip?
couldn't you sip?
couldn't they sip?

V-ing form

couldn't I be sipping?
couldn't you be sipping?
couldn't he be sipping?
couldn't we be sipping?
couldn't you be sipping?
couldn't they be sipping?

Perfect

couldn't I have sipped?
couldn't you have sipped?
couldn't he have sipped?
couldn't we have sipped?
couldn't you have sipped?
couldn't they have sipped?

V-ing perfect

couldn't I have been sipping?
couldn't you have been sipping?
couldn't he have been sipping?
couldn't we have been sipping?
couldn't you have been sipping?
couldn't they have been sipping?

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