English verb conjugation COULD CALIBRATE

Regular verb: calibrate - calibrated - calibrated

Affirmation

Simple form

I could calibrate
you could calibrate
he could calibrate
we could calibrate
you could calibrate
they could calibrate

V-ing form

I could be calibrating
you could be calibrating
he could be calibrating
we could be calibrating
you could be calibrating
they could be calibrating

Perfect

I could have calibrated
you could have calibrated
he could have calibrated
we could have calibrated
you could have calibrated
they could have calibrated

V-ing perfect

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

Negation

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

Interrogative form

Simple form

could I calibrate?
could you calibrate?
could he calibrate?
could we calibrate?
could you calibrate?
could they calibrate?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

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