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 cannot attest
you cannot attest
he cannot attest
we cannot attest
you cannot attest
they cannot attest

V-ing form

I cannot be attesting
you cannot be attesting
he cannot be attesting
we cannot be attesting
you cannot be attesting
they cannot be attesting

Perfect

I cannot have attested
you cannot have attested
he cannot have attested
we cannot have attested
you cannot have attested
they cannot have attested

V-ing perfect

I cannot have been attesting
you cannot have been attesting
he cannot have been attesting
we cannot have been attesting
you cannot have been attesting
they cannot 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 I not attest?
can you not attest?
can he not attest?
can we not attest?
can you not attest?
can they not attest?

V-ing form

can I not be attesting?
can you not be attesting?
can he not be attesting?
can we not be attesting?
can you not be attesting?
can they not be attesting?

Perfect

can I not have attested?
can you not have attested?
can he not have attested?
can we not have attested?
can you not have attested?
can they not have attested?

V-ing perfect

can I not have been attesting?
can you not have been attesting?
can he not have been attesting?
can we not have been attesting?
can you not have been attesting?
can they not have been attesting?

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