English verb conjugation CAN ATTEST

Regular verb: attest - attested - attested

Affirmation

Simple form

I can attest
you can attest
he can attest
we can attest
you can attest
they can attest

V-ing form

I can be attesting
you can be attesting
he can be attesting
we can be attesting
you can be attesting
they can be attesting

Perfect

I can have attested
you can have attested
he can have attested
we can have attested
you can have attested
they can have attested

V-ing perfect

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

Negation

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

Interrogative form

Simple form

can I attest?
can you attest?
can he attest?
can we attest?
can you attest?
can they attest?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

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