English verb conjugation CAN WITNESS

Regular verb: witness - witnessed - witnessed

Affirmation

Simple form

I can witness
you can witness
he can witness
we can witness
you can witness
they can witness

V-ing form

I can be witnessing
you can be witnessing
he can be witnessing
we can be witnessing
you can be witnessing
they can be witnessing

Perfect

I can have witnessed
you can have witnessed
he can have witnessed
we can have witnessed
you can have witnessed
they can have witnessed

V-ing perfect

I can have been witnessing
you can have been witnessing
he can have been witnessing
we can have been witnessing
you can have been witnessing
they can have been witnessing

Negation

Simple form

I can't witness
you can't witness
he can't witness
we can't witness
you can't witness
they can't witness

V-ing form

I can't be witnessing
you can't be witnessing
he can't be witnessing
we can't be witnessing
you can't be witnessing
they can't be witnessing

Perfect

I can't have witnessed
you can't have witnessed
he can't have witnessed
we can't have witnessed
you can't have witnessed
they can't have witnessed

V-ing perfect

I can't have been witnessing
you can't have been witnessing
he can't have been witnessing
we can't have been witnessing
you can't have been witnessing
they can't have been witnessing

Interrogative form

Simple form

can I witness?
can you witness?
can he witness?
can we witness?
can you witness?
can they witness?

V-ing form

can I be witnessing?
can you be witnessing?
can he be witnessing?
can we be witnessing?
can you be witnessing?
can they be witnessing?

Perfect

can I have witnessed?
can you have witnessed?
can he have witnessed?
can we have witnessed?
can you have witnessed?
can they have witnessed?

V-ing perfect

can I have been witnessing?
can you have been witnessing?
can he have been witnessing?
can we have been witnessing?
can you have been witnessing?
can they have been witnessing?

Interro-negative form

Simple form

can't I witness?
can't you witness?
can't he witness?
can't we witness?
can't you witness?
can't they witness?

V-ing form

can't I be witnessing?
can't you be witnessing?
can't he be witnessing?
can't we be witnessing?
can't you be witnessing?
can't they be witnessing?

Perfect

can't I have witnessed?
can't you have witnessed?
can't he have witnessed?
can't we have witnessed?
can't you have witnessed?
can't they have witnessed?

V-ing perfect

can't I have been witnessing?
can't you have been witnessing?
can't he have been witnessing?
can't we have been witnessing?
can't you have been witnessing?
can't they have been witnessing?

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