English verb conjugation COULD CHARACTERISE

Regular verb: characterise - characterised - characterised

Affirmation

Simple form

I could characterise
you could characterise
he could characterise
we could characterise
you could characterise
they could characterise

V-ing form

I could be characterising
you could be characterising
he could be characterising
we could be characterising
you could be characterising
they could be characterising

Perfect

I could have characterised
you could have characterised
he could have characterised
we could have characterised
you could have characterised
they could have characterised

V-ing perfect

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

Negation

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

Interrogative form

Simple form

could I characterise?
could you characterise?
could he characterise?
could we characterise?
could you characterise?
could they characterise?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

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