English verb conjugation COULD PERTURB

Regular verb: perturb - perturbed - perturbed

Affirmation

Simple form

I could perturb
you could perturb
she could perturb
we could perturb
you could perturb
they could perturb

V-ing form

I could be perturbing
you could be perturbing
she could be perturbing
we could be perturbing
you could be perturbing
they could be perturbing

Perfect

I could have perturbed
you could have perturbed
she could have perturbed
we could have perturbed
you could have perturbed
they could have perturbed

V-ing perfect

I could have been perturbing
you could have been perturbing
she could have been perturbing
we could have been perturbing
you could have been perturbing
they could have been perturbing

Negation

Simple form

I couldn't perturb
you couldn't perturb
she couldn't perturb
we couldn't perturb
you couldn't perturb
they couldn't perturb

V-ing form

I couldn't be perturbing
you couldn't be perturbing
she couldn't be perturbing
we couldn't be perturbing
you couldn't be perturbing
they couldn't be perturbing

Perfect

I couldn't have perturbed
you couldn't have perturbed
she couldn't have perturbed
we couldn't have perturbed
you couldn't have perturbed
they couldn't have perturbed

V-ing perfect

I couldn't have been perturbing
you couldn't have been perturbing
she couldn't have been perturbing
we couldn't have been perturbing
you couldn't have been perturbing
they couldn't have been perturbing

Interrogative form

Simple form

could I perturb?
could you perturb?
could she perturb?
could we perturb?
could you perturb?
could they perturb?

V-ing form

could I be perturbing?
could you be perturbing?
could she be perturbing?
could we be perturbing?
could you be perturbing?
could they be perturbing?

Perfect

could I have perturbed?
could you have perturbed?
could she have perturbed?
could we have perturbed?
could you have perturbed?
could they have perturbed?

V-ing perfect

could I have been perturbing?
could you have been perturbing?
could she have been perturbing?
could we have been perturbing?
could you have been perturbing?
could they have been perturbing?

Interro-negative form

Simple form

couldn't I perturb?
couldn't you perturb?
couldn't she perturb?
couldn't we perturb?
couldn't you perturb?
couldn't they perturb?

V-ing form

couldn't I be perturbing?
couldn't you be perturbing?
couldn't she be perturbing?
couldn't we be perturbing?
couldn't you be perturbing?
couldn't they be perturbing?

Perfect

couldn't I have perturbed?
couldn't you have perturbed?
couldn't she have perturbed?
couldn't we have perturbed?
couldn't you have perturbed?
couldn't they have perturbed?

V-ing perfect

couldn't I have been perturbing?
couldn't you have been perturbing?
couldn't she have been perturbing?
couldn't we have been perturbing?
couldn't you have been perturbing?
couldn't they have been perturbing?

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