Verbo regular: contribute - contributed - contributed
Indicativo
Presente
don't I contribute? don't you contribute? doesn't she contribute? don't we contribute? don't you contribute? don't they contribute?
Presente contínuo
am I not contributing? aren't you contributing? isn't she contributing? aren't we contributing? aren't you contributing? aren't they contributing?
Pretérito
didn't I contribute? didn't you contribute? didn't she contribute? didn't we contribute? didn't you contribute? didn't they contribute?
Preterito contínuo
wasn't I contributing? weren't you contributing? wasn't she contributing? weren't we contributing? weren't you contributing? weren't they contributing?
Presente perfeito
haven't I contributed? haven't you contributed? hasn't she contributed? haven't we contributed? haven't you contributed? haven't they contributed?
Presente perfeito contínuo
haven't I been contributing? haven't you been contributing? hasn't she been contributing? haven't we been contributing? haven't you been contributing? haven't they been contributing?
Mais perfeito
hadn't I contributed? hadn't you contributed? hadn't she contributed? hadn't we contributed? hadn't you contributed? hadn't they contributed?
Contínuo mais perfeito
hadn't I been contributing? hadn't you been contributing? hadn't she been contributing? hadn't we been contributing? hadn't you been contributing? hadn't they been contributing?
Futuro
won't I contribute? won't you contribute? won't she contribute? won't we contribute? won't you contribute? won't they contribute?
Futuro contínuo
won't I be contributing? won't you be contributing? won't she be contributing? won't we be contributing? won't you be contributing? won't they be contributing?
futuro perfeito
won't I have contributed? won't you have contributed? won't she have contributed? won't we have contributed? won't you have contributed? won't they have contributed?
futuro perfeito contínuo
won't I have been contributing? won't you have been contributing? won't she have been contributing? won't we have been contributing? won't you have been contributing? won't they have been contributing?
Condicional
Presente
wouldn't I contribute? wouldn't you contribute? wouldn't she contribute? wouldn't we contribute? wouldn't you contribute? wouldn't they contribute?
Presente contínuo
wouldn't I be contributing? wouldn't you be contributing? wouldn't she be contributing? wouldn't we be contributing? wouldn't you be contributing? wouldn't they be contributing?
Passado
wouldn't I have contributed? wouldn't you have contributed? wouldn't she have contributed? wouldn't we have contributed? wouldn't you have contributed? wouldn't they have contributed?
Passado contínuo
wouldn't I have been contributing? wouldn't you have been contributing? wouldn't she have been contributing? wouldn't we have been contributing? wouldn't you have been contributing? wouldn't they have been contributing?