English verb conjugation COULD CATEGORISE

Regular verb: categorise - categorised - categorised

Affirmation

Simple form

I could categorise
you could categorise
he could categorise
we could categorise
you could categorise
they could categorise

V-ing form

I could be categorising
you could be categorising
he could be categorising
we could be categorising
you could be categorising
they could be categorising

Perfect

I could have categorised
you could have categorised
he could have categorised
we could have categorised
you could have categorised
they could have categorised

V-ing perfect

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

Negation

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

Interrogative form

Simple form

could I categorise?
could you categorise?
could he categorise?
could we categorise?
could you categorise?
could they categorise?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

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