Conjugação do verbo inglês
COULD JAM

Verbo regular: jam - jammed - jammed

Afirmação

Forma simple	Forma com V-ing
I could jam you could jam she could jam we could jam you could jam they could jam	I could be jamming you could be jamming she could be jamming we could be jamming you could be jamming they could be jamming
Perfeito	Perfeito com V-ing
I could have jammed you could have jammed she could have jammed we could have jammed you could have jammed they could have jammed	I could have been jamming you could have been jamming she could have been jamming we could have been jamming you could have been jamming they could have been jamming

Negação

Forma simple	Forma com V-ing
I couldn't jam you couldn't jam she couldn't jam we couldn't jam you couldn't jam they couldn't jam	I couldn't be jamming you couldn't be jamming she couldn't be jamming we couldn't be jamming you couldn't be jamming they couldn't be jamming
Perfeito	Perfeito com V-ing
I couldn't have jammed you couldn't have jammed she couldn't have jammed we couldn't have jammed you couldn't have jammed they couldn't have jammed	I couldn't have been jamming you couldn't have been jamming she couldn't have been jamming we couldn't have been jamming you couldn't have been jamming they couldn't have been jamming

Forma interrogativa

Forma simple	Forma com V-ing
could I jam? could you jam? could she jam? could we jam? could you jam? could they jam?	could I be jamming? could you be jamming? could she be jamming? could we be jamming? could you be jamming? could they be jamming?
Perfeito	Perfeito com V-ing
could I have jammed? could you have jammed? could she have jammed? could we have jammed? could you have jammed? could they have jammed?	could I have been jamming? could you have been jamming? could she have been jamming? could we have been jamming? could you have been jamming? could they have been jamming?

Forma interro-Negação

Forma simple	Forma com V-ing
couldn't I jam? couldn't you jam? couldn't she jam? couldn't we jam? couldn't you jam? couldn't they jam?	couldn't I be jamming? couldn't you be jamming? couldn't she be jamming? couldn't we be jamming? couldn't you be jamming? couldn't they be jamming?
Perfeito	Perfeito com V-ing
couldn't I have jammed? couldn't you have jammed? couldn't she have jammed? couldn't we have jammed? couldn't you have jammed? couldn't they have jammed?	couldn't I have been jamming? couldn't you have been jamming? couldn't she have been jamming? couldn't we have been jamming? couldn't you have been jamming? couldn't they have been jamming?