Conjugation and declension of "concentrate" in English
Conjugation of the verb concentrate[ˈkɔnsəntreɪt],
regular 
Indicative
Present Indefinite
Present Continuous
Present Perfect
Present Perfect Continuous
Past Indefinite
Past Continuous
Past Perfect
Past Perfect Continuous
Future Indefinite
Future Continuous
Future Perfect
Future Perfect Continuous
Indicative
Present Indefinite
I don't concentrateyou don't concentrate
he/she/it doesn't concentrate
we don't concentrate
you don't concentrate
they don't concentrate
Present Continuous
I am not concentratingyou aren't concentrating
he/she/it isn't concentrating
we aren't concentrating
you aren't concentrating
they aren't concentrating
Present Perfect
I haven't concentratedyou haven't concentrated
he/she/it hasn't concentrated
we haven't concentrated
you haven't concentrated
they haven't concentrated
Present Perfect Continuous
I haven't been concentratingyou haven't been concentrating
he/she/it hasn't been concentrating
we haven't been concentrating
you haven't been concentrating
they haven't been concentrating
Past Indefinite
I didn't concentrateyou didn't concentrate
he/she/it didn't concentrate
we didn't concentrate
you didn't concentrate
they didn't concentrate
Past Continuous
I wasn't concentratingyou weren't concentrating
he/she/it wasn't concentrating
we weren't concentrating
you weren't concentrating
they weren't concentrating
Past Perfect
I hadn't concentratedyou hadn't concentrated
he/she/it hadn't concentrated
we hadn't concentrated
you hadn't concentrated
they hadn't concentrated
Past Perfect Continuous
I hadn't been concentratingyou hadn't been concentrating
he/she/it hadn't been concentrating
we hadn't been concentrating
you hadn't been concentrating
they hadn't been concentrating
Future Indefinite
I shan't / won't concentrateyou won't concentrate
he/she/it won't concentrate
we shan't / won't concentrate
you won't concentrate
they won't concentrate
Future Continuous
I shan't / won't be concentratingyou won't be concentrating
he/she/it won't be concentrating
we shan't / won't be concentrating
you won't be concentrating
they won't be concentrating
Future Perfect
I shan't / won't have concentratedyou won't have concentrated
he/she/it won't have concentrated
we shan't / won't have concentrated
you won't have concentrated
they won't have concentrated
Future Perfect Continuous
I shan't / won't have been concentratingyou won't have been concentrating
he/she/it won't have been concentrating
we shan't / won't have been concentrating
you won't have been concentrating
they won't have been concentrating
Conditional
Conditional Present
Conditional Present Continuous
Conditional Perfect
Conditional Perfect Continuous
Conditional
Conditional Present
I wouldn't concentrateyou wouldn't concentrate
he/she/it wouldn't concentrate
we wouldn't concentrate
you wouldn't concentrate
they wouldn't concentrate
Conditional Present Continuous
I wouldn't be concentratingyou wouldn't be concentrating
he/she/it wouldn't be concentrating
we wouldn't be concentrating
you wouldn't be concentrating
they wouldn't be concentrating
Conditional Perfect
I wouldn't have concentratedyou wouldn't have concentrated
he/she/it wouldn't have concentrated
we wouldn't have concentrated
you wouldn't have concentrated
they wouldn't have concentrated
Conditional Perfect Continuous
I wouldn't have been concentratingyou wouldn't have been concentrating
he/she/it wouldn't have been concentrating
we wouldn't have been concentrating
you wouldn't have been concentrating
they wouldn't have been concentrating
Participles
Present
Past
Infinitives
Infinitives
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Conjugation of English verbs
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