English verb conjugation COULD SHRILL

Regular verb: shrill - shrilled - shrilled


Affirmation

Simple form

I could shrill
you could shrill
he could shrill
we could shrill
you could shrill
they could shrill

V-ing form

I could be shrilling
you could be shrilling
he could be shrilling
we could be shrilling
you could be shrilling
they could be shrilling

Perfect

I could have shrilled
you could have shrilled
he could have shrilled
we could have shrilled
you could have shrilled
they could have shrilled

V-ing perfect

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

Negation

Simple form

I could not shrill
you could not shrill
he could not shrill
we could not shrill
you could not shrill
they could not shrill

V-ing form

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

Perfect

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

V-ing perfect

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

Interrogative form

Simple form

could I shrill?
could you shrill?
could he shrill?
could we shrill?
could you shrill?
could they shrill?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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