English verb conjugation COULD CUSTOMISE

Regular verb: customise - customised - customised

Affirmation

Simple form

I could customise
you could customise
he could customise
we could customise
you could customise
they could customise

V-ing form

I could be customising
you could be customising
he could be customising
we could be customising
you could be customising
they could be customising

Perfect

I could have customised
you could have customised
he could have customised
we could have customised
you could have customised
they could have customised

V-ing perfect

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

Negation

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

Interrogative form

Simple form

could I customise?
could you customise?
could he customise?
could we customise?
could you customise?
could they customise?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

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