could help
Verbo regular: help - helped- helped

Afirmação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I could help
you could help
she could help
we could help
you could help
they could help 	I could be helping
you could be helping
she could be helping
we could be helping
you could be helping
they could be helping	I could have helped
you could have helped
she could have helped
we could have helped
you could have helped
they could have helped	I could have been helping
you could have been helping
she could have been helping
we could have been helping
you could have been helping
they could have been helping	

Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I couldn't help
you couldn't help
she couldn't help
we couldn't help
you couldn't help
they couldn't help 	I couldn't be helping
you couldn't be helping
she couldn't be helping
we couldn't be helping
you couldn't be helping
they couldn't be helping	I couldn't have helped
you couldn't have helped
she couldn't have helped
we couldn't have helped
you couldn't have helped
they couldn't have helped	I couldn't have been helping
you couldn't have been helping
she couldn't have been helping
we couldn't have been helping
you couldn't have been helping
they couldn't have been helping	

Forma interrogativa 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
could I help?
could you help?
could she help?
could we help?
could you help?
could they help? 	could I be helping?
could you be helping?
could she be helping?
could we be helping?
could you be helping?
could they be helping? 	could I have helped?
could you have helped?
could she have helped?
could we have helped?
could you have helped?
could they have helped? 	could I have been helping?
could you have been helping?
could she have been helping?
could we have been helping?
could you have been helping?
could they have been helping? 	

Forma interro-Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
couldn't I help?
couldn't you help?
couldn't she help?
couldn't we help?
couldn't you help?
couldn't they help? 	couldn't I be helping?
couldn't you be helping?
couldn't she be helping?
couldn't we be helping?
couldn't you be helping?
couldn't they be helping? 	couldn't I have helped?
couldn't you have helped?
couldn't she have helped?
couldn't we have helped?
couldn't you have helped?
couldn't they have helped? 	couldn't I have been helping?
couldn't you have been helping?
couldn't she have been helping?
couldn't we have been helping?
couldn't you have been helping?
couldn't they have been helping?