English verb conjugation
TO CONCENTRATE

Regular verb: concentrate - concentrated - concentrated

Indicative

Present	Present continuous	Preterite	Preterite continuous
do I concentrate? do you concentrate? does he concentrate? do we concentrate? do you concentrate? do they concentrate?	am I concentrating? are you concentrating? is he concentrating? are we concentrating? are you concentrating? are they concentrating?	did I concentrate? did you concentrate? did he concentrate? did we concentrate? did you concentrate? did they concentrate?	was I concentrating? were you concentrating? was he concentrating? were we concentrating? were you concentrating? were they concentrating?
Present perfect	Present perfect continuous	Pluperfect	Pluperfect continuous
have I concentrated? have you concentrated? has he concentrated? have we concentrated? have you concentrated? have they concentrated?	have I been concentrating? have you been concentrating? has he been concentrating? have we been concentrating? have you been concentrating? have they been concentrating?	had I concentrated? had you concentrated? had he concentrated? had we concentrated? had you concentrated? had they concentrated?	had I been concentrating? had you been concentrating? had he been concentrating? had we been concentrating? had you been concentrating? had they been concentrating?
Future	Future continuous	Future perfect	Future perfect continuous
will I concentrate? will you concentrate? will he concentrate? will we concentrate? will you concentrate? will they concentrate?	will I be concentrating? will you be concentrating? will he be concentrating? will we be concentrating? will you be concentrating? will they be concentrating?	will I have concentrated? will you have concentrated? will he have concentrated? will we have concentrated? will you have concentrated? will they have concentrated?	will I have been concentrating? will you have been concentrating? will he have been concentrating? will we have been concentrating? will you have been concentrating? will they have been concentrating?

Conditional

Present	Present continuous	Past	Past continuous
would I concentrate? would you concentrate? would he concentrate? would we concentrate? would you concentrate? would they concentrate?	would I be concentrating? would you be concentrating? would he be concentrating? would we be concentrating? would you be concentrating? would they be concentrating?	would I have concentrated? would you have concentrated? would he have concentrated? would we have concentrated? would you have concentrated? would they have concentrated?	would I have been concentrating? would you have been concentrating? would he have been concentrating? would we have been concentrating? would you have been concentrating? would they have been concentrating?

Infinitive

Imperative

Infinitive		Imperative
to concentrate		- - -

Participle

Present	Past
concentrating	concentrated