Conjugação do verbo inglês COULD AUTHENTICATE

Verbo regular: authenticate - authenticated - authenticated

Afirmação

Forma simple

I could authenticate
you could authenticate
he could authenticate
we could authenticate
you could authenticate
they could authenticate

Forma com V-ing

I could be authenticating
you could be authenticating
he could be authenticating
we could be authenticating
you could be authenticating
they could be authenticating

Perfeito

I could have authenticated
you could have authenticated
he could have authenticated
we could have authenticated
you could have authenticated
they could have authenticated

Perfeito com V-ing

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

Negação

Forma simple

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

Forma com V-ing

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

Perfeito

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

Perfeito com V-ing

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

Forma interrogativa

Forma simple

could I authenticate?
could you authenticate?
could he authenticate?
could we authenticate?
could you authenticate?
could they authenticate?

Forma com V-ing

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

Perfeito

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

Perfeito com V-ing

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

Forma interro-Negação

Forma simple

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

Forma com V-ing

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

Perfeito

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

Perfeito com V-ing

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

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