Conjugação do verbo inglês
COULD SIGNIFY

Verbo regular: signify - signified - signified

Afirmação

Forma simple	Forma com V-ing
I could signify you could signify he could signify we could signify you could signify they could signify	I could be signifying you could be signifying he could be signifying we could be signifying you could be signifying they could be signifying
Perfeito	Perfeito com V-ing
I could have signified you could have signified he could have signified we could have signified you could have signified they could have signified	I could have been signifying you could have been signifying he could have been signifying we could have been signifying you could have been signifying they could have been signifying

Negação

Forma simple	Forma com V-ing
I couldn't signify you couldn't signify he couldn't signify we couldn't signify you couldn't signify they couldn't signify	I couldn't be signifying you couldn't be signifying he couldn't be signifying we couldn't be signifying you couldn't be signifying they couldn't be signifying
Perfeito	Perfeito com V-ing
I couldn't have signified you couldn't have signified he couldn't have signified we couldn't have signified you couldn't have signified they couldn't have signified	I couldn't have been signifying you couldn't have been signifying he couldn't have been signifying we couldn't have been signifying you couldn't have been signifying they couldn't have been signifying

Forma interrogativa

Forma simple	Forma com V-ing
could I signify? could you signify? could he signify? could we signify? could you signify? could they signify?	could I be signifying? could you be signifying? could he be signifying? could we be signifying? could you be signifying? could they be signifying?
Perfeito	Perfeito com V-ing
could I have signified? could you have signified? could he have signified? could we have signified? could you have signified? could they have signified?	could I have been signifying? could you have been signifying? could he have been signifying? could we have been signifying? could you have been signifying? could they have been signifying?

Forma interro-Negação

Forma simple	Forma com V-ing
couldn't I signify? couldn't you signify? couldn't he signify? couldn't we signify? couldn't you signify? couldn't they signify?	couldn't I be signifying? couldn't you be signifying? couldn't he be signifying? couldn't we be signifying? couldn't you be signifying? couldn't they be signifying?
Perfeito	Perfeito com V-ing
couldn't I have signified? couldn't you have signified? couldn't he have signified? couldn't we have signified? couldn't you have signified? couldn't they have signified?	couldn't I have been signifying? couldn't you have been signifying? couldn't he have been signifying? couldn't we have been signifying? couldn't you have been signifying? couldn't they have been signifying?