could oppose
Verbo regular: oppose - opposed- opposed

Afirmação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I could oppose
you could oppose
he could oppose
we could oppose
you could oppose
they could oppose 	I could be opposing
you could be opposing
he could be opposing
we could be opposing
you could be opposing
they could be opposing	I could have opposed
you could have opposed
he could have opposed
we could have opposed
you could have opposed
they could have opposed	I could have been opposing
you could have been opposing
he could have been opposing
we could have been opposing
you could have been opposing
they could have been opposing	

Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I couldn't oppose
you couldn't oppose
he couldn't oppose
we couldn't oppose
you couldn't oppose
they couldn't oppose 	I couldn't be opposing
you couldn't be opposing
he couldn't be opposing
we couldn't be opposing
you couldn't be opposing
they couldn't be opposing	I couldn't have opposed
you couldn't have opposed
he couldn't have opposed
we couldn't have opposed
you couldn't have opposed
they couldn't have opposed	I couldn't have been opposing
you couldn't have been opposing
he couldn't have been opposing
we couldn't have been opposing
you couldn't have been opposing
they couldn't have been opposing	

Forma interrogativa 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
could I oppose?
could you oppose?
could he oppose?
could we oppose?
could you oppose?
could they oppose? 	could I be opposing?
could you be opposing?
could he be opposing?
could we be opposing?
could you be opposing?
could they be opposing? 	could I have opposed?
could you have opposed?
could he have opposed?
could we have opposed?
could you have opposed?
could they have opposed? 	could I have been opposing?
could you have been opposing?
could he have been opposing?
could we have been opposing?
could you have been opposing?
could they have been opposing? 	

Forma interro-Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
couldn't I oppose?
couldn't you oppose?
couldn't he oppose?
couldn't we oppose?
couldn't you oppose?
couldn't they oppose? 	couldn't I be opposing?
couldn't you be opposing?
couldn't he be opposing?
couldn't we be opposing?
couldn't you be opposing?
couldn't they be opposing? 	couldn't I have opposed?
couldn't you have opposed?
couldn't he have opposed?
couldn't we have opposed?
couldn't you have opposed?
couldn't they have opposed? 	couldn't I have been opposing?
couldn't you have been opposing?
couldn't he have been opposing?
couldn't we have been opposing?
couldn't you have been opposing?
couldn't they have been opposing?