English verb conjugation COULD SPRING

Irregular verb: spring - sprang, sprung - sprung

Affirmation

Simple form

I could spring
you could spring
he could spring
we could spring
you could spring
they could spring

V-ing form

I could be springing
you could be springing
he could be springing
we could be springing
you could be springing
they could be springing

Perfect

I could have sprung
you could have sprung
he could have sprung
we could have sprung
you could have sprung
they could have sprung

V-ing perfect

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

Negation

Simple form

I could not spring
you could not spring
he could not spring
we could not spring
you could not spring
they could not spring

V-ing form

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

Perfect

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

V-ing perfect

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

Interrogative form

Simple form

could I spring?
could you spring?
could he spring?
could we spring?
could you spring?
could they spring?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

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