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Indicative

Present Simple
Perfect Simple
Past Simple
Pluperfect Simple
Future Simple
Future perfect Simple
Present Continuous
Perfect Continuous
Past Continuous
Pluperfect Continuous
Future Continuous
Future perfect Continuous
I authenticate
you authenticate
he/she/it authenticates
we authenticate
they authenticate
I have authenticated
you have authenticated
he/she/it has authenticated
we have authenticated
they have authenticated
I authenticated
you authenticated
he/she/it authenticated
we authenticated
they authenticated
I had authenticated
you had authenticated
he/she/it had authenticated
we had authenticated
they had authenticated
I will authenticate
you will authenticate
he/she/it will authenticate
we will authenticate
they will authenticate
I will have authenticated
you will have authenticated
he/she/it will have authenticated
we will have authenticated
they will have authenticated
I am authenticating
you are authenticating
he/she/it is authenticating
we are authenticating
they are authenticating
I have been authenticating
you have been authenticating
he/she/it has been authenticating
we have been authenticating
they have been authenticating
I was authenticating
you were authenticating
he/she/it was authenticating
we were authenticating
they were authenticating
I had been authenticating
you had been authenticating
he/she/it had been authenticating
we had been authenticating
they had been authenticating
I will be authenticating
you will be authenticating
he/she/it will be authenticating
we will be authenticating
they will be authenticating
I will have been authenticating
you will have been authenticating
he/she/it will have been authenticating
we will have been authenticating
they will have been authenticating

Subjunctive

Present Simple
Perfect Simple
Imperfect Simple
Pluperfect Simple
I authenticate
you authenticate
he/she/it authenticate
we authenticate
they authenticate
I have authenticated
you have authenticated
he/she/it have authenticated
we have authenticated
they have authenticated
I authenticated
you authenticated
he/she/it authenticated
we authenticated
they authenticated
I had authenticated
you had authenticated
he/she/it had authenticated
we had authenticated
they had authenticated

Conditional

Present Simple
Perfect Simple
Present Continuous
Perfect Continuous
I would authenticate
you would authenticate
he/she/it would authenticate
we would authenticate
they would authenticate
I would have authenticated
you would have authenticated
he/she/it would have authenticated
we would have authenticated
they would have authenticated
I would be authenticating
you would be authenticating
he/she/it would be authenticating
we would be authenticating
they would be authenticating
I would have been authenticating
you would have been authenticating
he/she/it would have been authenticating
we would have been authenticating
they would have been authenticating

Imperative

you authenticate
we Let's authenticate

← Conjugate another English verb

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