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English conjugation tables

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Search for infinitive (min. 3 letters):

to authenticate [tr]

to authenticate, authenticated, authenticated
– authenticates, authenticating –





ACTIVE Intro NEGATION
FULL FORM QUESTION
Top - Indicative - Conditional- Bottom
indicative presentindicative past tense
do I not authenticate?did I not authenticate?
do you not authenticate?did you not authenticate?
does he/she/it not authenticate?did he/she/it not authenticate?
do we not authenticate?did we not authenticate?
do you not authenticate?did you not authenticate?
do they not authenticate?did they not authenticate?
indicative present continuousindicative past tense continuous
am I not authenticating?was I not authenticating?
are you not authenticating?were you not authenticating?
is he/she/it not authenticating?was he/she/it not authenticating?
are we not authenticating?were we not authenticating?
are you not authenticating?were you not authenticating?
are they not authenticating?were they not authenticating?
indicative present perfectindicatif past perfect
have I not authenticated?had I not authenticated?
have you not authenticated?had you not authenticated?
has he/she/it not authenticated?had he/she/it not authenticated?
have we not authenticated?had we not authenticated?
have you not authenticated?had you not authenticated?
have they not authenticated?had they not authenticated?
indicative present perfect cont.indicative past perfect cont.
have I not been authenticating?had I not been authenticating?
have you not been authenticating?had you not been authenticating?
has he/she/it not been authenticating?had he/she/it not been authenticating?
have we been not authenticating?had we not been authenticating?
have you been not authenticating?had you not been authenticating?
have they been not authenticating?had they not been authenticating?
indicative futureindicative future perfect
shall/will I not authenticate?shall/will I not have authenticated?
will you not authenticate?will you not have authenticated?
will he/she/it not authenticate?will he/she/it not have authenticated?
shall/will we not authenticate?shall/will we not have authenticated?
will you not authenticate?will you not have authenticated?
will they not authenticate?will they not have authenticated?
indicative future continuousindicative future cont.
shall/will I not be authenticating?shall/will I not have been authenticating?
will you not be authenticating?will you not have been authenticating?
will he/she/it not be authenticating?will he/she/it not have been authenticating?
shall/will we not be authenticating?shall/will we not have been authenticating?
will you not be authenticating?will you not have been authenticating?
will they not be authenticating?will they not have been authenticating?
Top - Indicative - Conditional- Bottom
conditional presentconditional perfect
should/would I not authenticate?should/would I not have authenticated?
would you not authenticate?would you not have authenticated?
would he/she/it not authenticate?would he/she/it not have authenticated?
should/would we not authenticate?should/would we not have authenticated?
would you not authenticate?would you not have authenticated?
would they not authenticate?would they not have authenticated?
conditional present cont.conditional perfect cont.
should/would I not be authenticating?should/would I not have been authenticating?
would you not be authenticating?would you not have been authenticating?
would he/she/it not be authenticating?would he/she/it not have been authenticating?
should/would we not be authenticating?should/would we not have been authenticating?
would you not be authenticating?would you not have been authenticating?
would they not be authenticating?would they not have been authenticating?

A quick overview of the irregular English verbs you get in the table.


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