could devise
Verbo regular: devise - devised- devised

Afirmação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I could devise
you could devise
he could devise
we could devise
you could devise
they could devise 	I could be devising
you could be devising
he could be devising
we could be devising
you could be devising
they could be devising	I could have devised
you could have devised
he could have devised
we could have devised
you could have devised
they could have devised	I could have been devising
you could have been devising
he could have been devising
we could have been devising
you could have been devising
they could have been devising	

Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I couldn't devise
you couldn't devise
he couldn't devise
we couldn't devise
you couldn't devise
they couldn't devise 	I couldn't be devising
you couldn't be devising
he couldn't be devising
we couldn't be devising
you couldn't be devising
they couldn't be devising	I couldn't have devised
you couldn't have devised
he couldn't have devised
we couldn't have devised
you couldn't have devised
they couldn't have devised	I couldn't have been devising
you couldn't have been devising
he couldn't have been devising
we couldn't have been devising
you couldn't have been devising
they couldn't have been devising	

Forma interrogativa 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
could I devise?
could you devise?
could he devise?
could we devise?
could you devise?
could they devise? 	could I be devising?
could you be devising?
could he be devising?
could we be devising?
could you be devising?
could they be devising? 	could I have devised?
could you have devised?
could he have devised?
could we have devised?
could you have devised?
could they have devised? 	could I have been devising?
could you have been devising?
could he have been devising?
could we have been devising?
could you have been devising?
could they have been devising? 	

Forma interro-Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
couldn't I devise?
couldn't you devise?
couldn't he devise?
couldn't we devise?
couldn't you devise?
couldn't they devise? 	couldn't I be devising?
couldn't you be devising?
couldn't he be devising?
couldn't we be devising?
couldn't you be devising?
couldn't they be devising? 	couldn't I have devised?
couldn't you have devised?
couldn't he have devised?
couldn't we have devised?
couldn't you have devised?
couldn't they have devised? 	couldn't I have been devising?
couldn't you have been devising?
couldn't he have been devising?
couldn't we have been devising?
couldn't you have been devising?
couldn't they have been devising?