Present
I contribute
you contribute
he/she/it contributes
we contribute
you contribute
they contribute
|
Present continuous
I am contributing
you are contributing
he/she/it is contributing
we are contributing
you are contributing
they are contributing
|
Preterit
I contributed
you contributed
he/she/it contributed
we contributed
you contributed
they contributed
|
Preterit continuous
I was contributing
you were contributing
he/she/it was contributing
we were contributing
you were contributing
they were contributing
|
Present perfect
I have contributed
you have contributed
he/she/it has contributed
we have contributed
you have contributed
they have contributed
|
Present perfect continuous
I have been contributing
you have been contributing
he/she/it has been contributing
we have been contributing
you have been contributing
they have been contributing
|
Pluperfect
I had contributed
you had contributed
he/she/it had contributed
we had contributed
you had contributed
they had contributed
|
Pluperfect continuous
I had been contributing
you had been contributing
he/she/it had been contributing
we had been contributing
you had been contributing
they had been contributing
|
Future
I will contribute
you will contribute
he/she/it will contribute
we will contribute
you will contribute
they will contribute
|
Future continuous
I will be contributing
you will be contributing
he/she/it will be contributing
we will be contributing
you will be contributing
they will be contributing
|
Future perfect
I will have contributed
you will have contributed
he/she/it will have contributed
we will have contributed
you will have contributed
they will have contributed
|
Future perfect continuous
I will have been contributing
you will have been contributing
he/she/it will have been contributing
we will have been contributing
you will have been contributing
they will have been contributing
|