English verb conjugation COULD OXIDISE

Regular verb: oxidise - oxidised - oxidised

Affirmation

Simple form

I could oxidise
you could oxidise
he could oxidise
we could oxidise
you could oxidise
they could oxidise

V-ing form

I could be oxidising
you could be oxidising
he could be oxidising
we could be oxidising
you could be oxidising
they could be oxidising

Perfect

I could have oxidised
you could have oxidised
he could have oxidised
we could have oxidised
you could have oxidised
they could have oxidised

V-ing perfect

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

Negation

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

Interrogative form

Simple form

could I oxidise?
could you oxidise?
could he oxidise?
could we oxidise?
could you oxidise?
could they oxidise?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

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