Present
I concentrate
you concentrate
he/she/it concentrates
we concentrate
you concentrate
they concentrate
|
Present continuous
I am concentrating
you are concentrating
he/she/it is concentrating
we are concentrating
you are concentrating
they are concentrating
|
Preterit
I concentrated
you concentrated
he/she/it concentrated
we concentrated
you concentrated
they concentrated
|
Preterit continuous
I was concentrating
you were concentrating
he/she/it was concentrating
we were concentrating
you were concentrating
they were concentrating
|
Present perfect
I have concentrated
you have concentrated
he/she/it has concentrated
we have concentrated
you have concentrated
they have concentrated
|
Present perfect continuous
I have been concentrating
you have been concentrating
he/she/it has been concentrating
we have been concentrating
you have been concentrating
they have been concentrating
|
Pluperfect
I had concentrated
you had concentrated
he/she/it had concentrated
we had concentrated
you had concentrated
they had concentrated
|
Pluperfect continuous
I had been concentrating
you had been concentrating
he/she/it had been concentrating
we had been concentrating
you had been concentrating
they had been concentrating
|
Future
I will concentrate
you will concentrate
he/she/it will concentrate
we will concentrate
you will concentrate
they will concentrate
|
Future continuous
I will be concentrating
you will be concentrating
he/she/it will be concentrating
we will be concentrating
you will be concentrating
they will be concentrating
|
Future perfect
I will have concentrated
you will have concentrated
he/she/it will have concentrated
we will have concentrated
you will have concentrated
they will have concentrated
|
Future perfect continuous
I will have been concentrating
you will have been concentrating
he/she/it will have been concentrating
we will have been concentrating
you will have been concentrating
they will have been concentrating
|