English verb conjugation COULD STILL

Regular verb: still - stilled - stilled

Affirmation

Simple form

I could still
you could still
he could still
we could still
you could still
they could still

V-ing form

I could be stilling
you could be stilling
he could be stilling
we could be stilling
you could be stilling
they could be stilling

Perfect

I could have stilled
you could have stilled
he could have stilled
we could have stilled
you could have stilled
they could have stilled

V-ing perfect

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

Negation

Simple form

I could not still
you could not still
he could not still
we could not still
you could not still
they could not still

V-ing form

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

Perfect

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

V-ing perfect

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

Interrogative form

Simple form

could I still?
could you still?
could he still?
could we still?
could you still?
could they still?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

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