Conjugação do verbo inglês
COULD SINTER

Verbo regular: sinter - sintered - sintered

Afirmação

Forma simple	Forma com V-ing
I could sinter you could sinter he could sinter we could sinter you could sinter they could sinter	I could be sintering you could be sintering he could be sintering we could be sintering you could be sintering they could be sintering
Perfeito	Perfeito com V-ing
I could have sintered you could have sintered he could have sintered we could have sintered you could have sintered they could have sintered	I could have been sintering you could have been sintering he could have been sintering we could have been sintering you could have been sintering they could have been sintering

Negação

Forma simple	Forma com V-ing
I couldn't sinter you couldn't sinter he couldn't sinter we couldn't sinter you couldn't sinter they couldn't sinter	I couldn't be sintering you couldn't be sintering he couldn't be sintering we couldn't be sintering you couldn't be sintering they couldn't be sintering
Perfeito	Perfeito com V-ing
I couldn't have sintered you couldn't have sintered he couldn't have sintered we couldn't have sintered you couldn't have sintered they couldn't have sintered	I couldn't have been sintering you couldn't have been sintering he couldn't have been sintering we couldn't have been sintering you couldn't have been sintering they couldn't have been sintering

Forma interrogativa

Forma simple	Forma com V-ing
could I sinter? could you sinter? could he sinter? could we sinter? could you sinter? could they sinter?	could I be sintering? could you be sintering? could he be sintering? could we be sintering? could you be sintering? could they be sintering?
Perfeito	Perfeito com V-ing
could I have sintered? could you have sintered? could he have sintered? could we have sintered? could you have sintered? could they have sintered?	could I have been sintering? could you have been sintering? could he have been sintering? could we have been sintering? could you have been sintering? could they have been sintering?

Forma interro-Negação

Forma simple	Forma com V-ing
couldn't I sinter? couldn't you sinter? couldn't he sinter? couldn't we sinter? couldn't you sinter? couldn't they sinter?	couldn't I be sintering? couldn't you be sintering? couldn't he be sintering? couldn't we be sintering? couldn't you be sintering? couldn't they be sintering?
Perfeito	Perfeito com V-ing
couldn't I have sintered? couldn't you have sintered? couldn't he have sintered? couldn't we have sintered? couldn't you have sintered? couldn't they have sintered?	couldn't I have been sintering? couldn't you have been sintering? couldn't he have been sintering? couldn't we have been sintering? couldn't you have been sintering? couldn't they have been sintering?