English verb conjugation COULD NATURALISE

Regular verb: naturalise - naturalised - naturalised

Affirmation

Simple form

I could naturalise
you could naturalise
he could naturalise
we could naturalise
you could naturalise
they could naturalise

V-ing form

I could be naturalising
you could be naturalising
he could be naturalising
we could be naturalising
you could be naturalising
they could be naturalising

Perfect

I could have naturalised
you could have naturalised
he could have naturalised
we could have naturalised
you could have naturalised
they could have naturalised

V-ing perfect

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

Negation

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

Interrogative form

Simple form

could I naturalise?
could you naturalise?
could he naturalise?
could we naturalise?
could you naturalise?
could they naturalise?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

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