to contribute
Verbo regular: contribute - contributed- contributed

Indicativo 	
Presente 	Presente contínuo 	Pretérito 	Preterito contínuo 	
I contribute
you contribute
she contributes
we contribute
you contribute
they contribute 	I'mcontributing
you'recontributing
she'scontributing
we'recontributing
you'recontributing
they'recontributing	I contributed
you contributed
she contributed
we contributed
you contributed
they contributed	Iwascontributing
youwerecontributing
shewascontributing
wewerecontributing
youwerecontributing
theywerecontributing	
Presente perfeito 	Presente perfeito contínuo 	Mais perfeito 	Contínuo mais perfeito 	
I've contributed
you've contributed
she's contributed
we've contributed
you've contributed
they've contributed	I'vebeen contributing
you'vebeen contributing
she'sbeen contributing
we'vebeen contributing
you'vebeen contributing
they'vebeen contributing	I'd contributed
you'd contributed
she'd contributed
we'd contributed
you'd contributed
they'd contributed	I'd been contributing
you'd been contributing
she'd been contributing
we'd been contributing
you'd been contributing
they'd been contributing	
Futuro 	Futuro contínuo 	futuro perfeito 	futuro perfeito contínuo 	
I'll contribute
you'll contribute
she'll contribute
we'll contribute
you'll contribute
they'll contribute 	I'll be contributing
you'll be contributing
she'll be contributing
we'll be contributing
you'll be contributing
they'll be contributing	I'll have contributed
you'll have contributed
she'll have contributed
we'll have contributed
you'll have contributed
they'll have contributed	I'll have been contributing
you'll have been contributing
she'll have been contributing
we'll have been contributing
you'll have been contributing
they'll have been contributing	

Condicional 	
Presente 	Presente contínuo 	Passado 	Passado contínuo 	
I'd contribute
you'd contribute
she'd contribute
we'd contribute
you'd contribute
they'd contribute 	I'd be contributing
you'd be contributing
she'd be contributing
we'd be contributing
you'd be contributing
they'd be contributing	I'd have contributed
you'd have contributed
she'd have contributed
we'd have contributed
you'd have contributed
they'd have contributed	I'd have been contributing
you'd have been contributing
she'd have been contributing
we'd have been contributing
you'd have been contributing
they'd have been contributing	

Infinitivo 	
Imperativo 	
Infinitivo 	 	Imperativo 	 	
to contribute 	 	contribute
Let's contribute
contribute 	 	

Particípio 	
Presente 	Passado 	 	 	
contributing	contributed