English verb conjugation COULD COMMEMORATE

Regular verb: commemorate - commemorated - commemorated

Affirmation

Simple form

I could commemorate
you could commemorate
he could commemorate
we could commemorate
you could commemorate
they could commemorate

V-ing form

I could be commemorating
you could be commemorating
he could be commemorating
we could be commemorating
you could be commemorating
they could be commemorating

Perfect

I could have commemorated
you could have commemorated
he could have commemorated
we could have commemorated
you could have commemorated
they could have commemorated

V-ing perfect

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

Negation

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

Interrogative form

Simple form

could I commemorate?
could you commemorate?
could he commemorate?
could we commemorate?
could you commemorate?
could they commemorate?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

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