to contribute
Verbo regular: contribute - contributed- contributed

Indicativo 	
Presente 	Presente contínuo 	Pretérito 	Preterito contínuo 	
 don't I contribute?
don't you contribute?
doesn't he contribute?
don't we contribute?
don't you contribute?
don't they contribute? 	amI not contributing?
aren't you contributing?
isn't he contributing?
aren't we contributing?
aren't you contributing?
aren't they contributing? 	didn't I contribute?
didn't you contribute?
didn't he contribute?
didn't we contribute?
didn't you contribute?
didn't they contribute? 	wasn't I contributing?
weren't you contributing?
wasn't he contributing?
weren't we contributing?
weren't you contributing?
weren't they contributing? 	
Presente perfeito 	Presente perfeito contínuo 	Mais perfeito 	Contínuo mais perfeito 	
haven't I contributed?
haven't you contributed?
hasn't he contributed?
haven't we contributed?
haven't you contributed?
haven't they contributed? 	haven't I been contributing?
haven't you been contributing?
hasn't he been contributing?
haven't we been contributing?
haven't you been contributing?
haven't they been contributing? 	hadn't I contributed?
hadn't you contributed?
hadn't he contributed?
hadn't we contributed?
hadn't you contributed?
hadn't they contributed? 	hadn't I been contributing?
hadn't you been contributing?
hadn't he been contributing?
hadn't we been contributing?
hadn't you been contributing?
hadn't they been contributing? 	
Futuro 	Futuro contínuo 	futuro perfeito 	futuro perfeito contínuo 	
won't I contribute?
won't you contribute?
won't he contribute?
won't we contribute?
won't you contribute?
won't they contribute? 	won't I be contributing?
won't you be contributing?
won't he be contributing?
won't we be contributing?
won't you be contributing?
won't they be contributing? 	won't I have contributed?
won't you have contributed?
won't he have contributed?
won't we have contributed?
won't you have contributed?
won't they have contributed? 	won't I have been contributing?
won't you have been contributing?
won't he have been contributing?
won't we have been contributing?
won't you have been contributing?
won't they have been contributing? 	

Condicional 	
Presente 	Presente contínuo 	Passado 	Passado contínuo 	
wouldn't I contribute?
wouldn't you contribute?
wouldn't he contribute?
wouldn't we contribute?
wouldn't you contribute?
wouldn't they contribute? 	wouldn't I be contributing?
wouldn't you be contributing?
wouldn't he be contributing?
wouldn't we be contributing?
wouldn't you be contributing?
wouldn't they be contributing? 	wouldn't I have contributed?
wouldn't you have contributed?
wouldn't he have contributed?
wouldn't we have contributed?
wouldn't you have contributed?
wouldn't they have contributed? 	wouldn't I have been contributing?
wouldn't you have been contributing?
wouldn't he have been contributing?
wouldn't we have been contributing?
wouldn't you have been contributing?
wouldn't they have been contributing? 	

Infinitivo 	
Imperativo 	
Infinitivo 	 	Imperativo 	 	
to contribute 	 	-
-
- 	 	

Particípio 	
Presente 	Passado 	 	 	
contributing	contributed