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male gender | Modal : no | may | might | can | could | shall | should | will | would | must | ought to

English verb conjugation CAN CONTRIBUTE

Regular verb: contribute - contributed - contributed


Affirmation

Simple form
I can contribute
you can contribute
she can contribute
we can contribute
you can contribute
they can contribute
V-ing form
I can be contributing
you can be contributing
she can be contributing
we can be contributing
you can be contributing
they can be contributing
Perfect
I can have contributed
you can have contributed
she can have contributed
we can have contributed
you can have contributed
they can have contributed
V-ing perfect
I can have been contributing
you can have been contributing
she can have been contributing
we can have been contributing
you can have been contributing
they can have been contributing

Negation

Simple form
I can't contribute
you can't contribute
she can't contribute
we can't contribute
you can't contribute
they can't contribute
V-ing form
I can't be contributing
you can't be contributing
she can't be contributing
we can't be contributing
you can't be contributing
they can't be contributing
Perfect
I can't have contributed
you can't have contributed
she can't have contributed
we can't have contributed
you can't have contributed
they can't have contributed
V-ing perfect
I can't have been contributing
you can't have been contributing
she can't have been contributing
we can't have been contributing
you can't have been contributing
they can't have been contributing

Interrogative form

Simple form
can I contribute?
can you contribute?
can she contribute?
can we contribute?
can you contribute?
can they contribute?
V-ing form
can I be contributing?
can you be contributing?
can she be contributing?
can we be contributing?
can you be contributing?
can they be contributing?
Perfect
can I have contributed?
can you have contributed?
can she have contributed?
can we have contributed?
can you have contributed?
can they have contributed?
V-ing perfect
can I have been contributing?
can you have been contributing?
can she have been contributing?
can we have been contributing?
can you have been contributing?
can they have been contributing?

Interro-negative form

Simple form
can't I contribute?
can't you contribute?
can't she contribute?
can't we contribute?
can't you contribute?
can't they contribute?
V-ing form
can't I be contributing?
can't you be contributing?
can't she be contributing?
can't we be contributing?
can't you be contributing?
can't they be contributing?
Perfect
can't I have contributed?
can't you have contributed?
can't she have contributed?
can't we have contributed?
can't you have contributed?
can't they have contributed?
V-ing perfect
can't I have been contributing?
can't you have been contributing?
can't she have been contributing?
can't we have been contributing?
can't you have been contributing?
can't they have been contributing?