English verb conjugation COULD STALL

Regular verb: stall - stalled - stalled

Affirmation

Simple form

I could stall
you could stall
he could stall
we could stall
you could stall
they could stall

V-ing form

I could be stalling
you could be stalling
he could be stalling
we could be stalling
you could be stalling
they could be stalling

Perfect

I could have stalled
you could have stalled
he could have stalled
we could have stalled
you could have stalled
they could have stalled

V-ing perfect

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

Negation

Simple form

I couldn't stall
you couldn't stall
he couldn't stall
we couldn't stall
you couldn't stall
they couldn't stall

V-ing form

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

Perfect

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

V-ing perfect

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

Interrogative form

Simple form

could I stall?
could you stall?
could he stall?
could we stall?
could you stall?
could they stall?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

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