English verb conjugation COULD SLITHER

Regular verb: slither - slithered - slithered

Affirmation

Simple form

I could slither
you could slither
he could slither
we could slither
you could slither
they could slither

V-ing form

I could be slithering
you could be slithering
he could be slithering
we could be slithering
you could be slithering
they could be slithering

Perfect

I could have slithered
you could have slithered
he could have slithered
we could have slithered
you could have slithered
they could have slithered

V-ing perfect

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

Negation

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

Interrogative form

Simple form

could I slither?
could you slither?
could he slither?
could we slither?
could you slither?
could they slither?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

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