Indicativo
Presente
I contribute
you contribute
he contributes
we contribute
you contribute
they contribute
Presente continuo
I am contributing
you are contributing
he is contributing
we are contributing
you are contributing
they are contributing
Pretérito
I contributed
you contributed
he contributed
we contributed
you contributed
they contributed
Pretérito continuo
I was contributing
you were contributing
he was contributing
we were contributing
you were contributing
they were contributing
Presente perfecto
I have contributed
you have contributed
he has contributed
we have contributed
you have contributed
they have contributed
Presente perfecto continuo
I have been contributing
you have been contributing
he has been contributing
we have been contributing
you have been contributing
they have been contributing
Pluscuamperfecto
I had contributed
you had contributed
he had contributed
we had contributed
you had contributed
they had contributed
Pluscuamperfecto continuo
I had been contributing
you had been contributing
he had been contributing
we had been contributing
you had been contributing
they had been contributing
Futuro simple
I will contribute
you will contribute
he will contribute
we will contribute
you will contribute
they will contribute
Futuro continuo
I will be contributing
you will be contributing
he will be contributing
we will be contributing
you will be contributing
they will be contributing
Futuro perfecto
I will have contributed
you will have contributed
he will have contributed
we will have contributed
you will have contributed
they will have contributed
Futuro perfecto contínuo
I will have been contributing
you will have been contributing
he will have been contributing
we will have been contributing
you will have been contributing
they will have been contributing
Condicional
Presente
I would contribute
you would contribute
he would contribute
we would contribute
you would contribute
they would contribute
Presente continuo
I would be contributing
you would be contributing
he would be contributing
we would be contributing
you would be contributing
they would be contributing
Passado
I would have contributed
you would have contributed
he would have contributed
we would have contributed
you would have contributed
they would have contributed
Passado continuo
I would have been contributing
you would have been contributing
he would have been contributing
we would have been contributing
you would have been contributing
they would have been contributing
Imperativo
Imperativo
contribute
Let's contribute
contribute
Infinitivo
Infinitivo
to contribute
Participio
Presente
contributing
Passado
contributed