I could stress you could stress he could stress we could stress you could stress they could stress
Forma com V-ing
I could be stressing you could be stressing he could be stressing we could be stressing you could be stressing they could be stressing
Perfeito
I could have stressed you could have stressed he could have stressed we could have stressed you could have stressed they could have stressed
Perfeito com V-ing
I could have been stressing you could have been stressing he could have been stressing we could have been stressing you could have been stressing they could have been stressing
Negação
Forma simple
I couldn't stress you couldn't stress he couldn't stress we couldn't stress you couldn't stress they couldn't stress
Forma com V-ing
I couldn't be stressing you couldn't be stressing he couldn't be stressing we couldn't be stressing you couldn't be stressing they couldn't be stressing
Perfeito
I couldn't have stressed you couldn't have stressed he couldn't have stressed we couldn't have stressed you couldn't have stressed they couldn't have stressed
Perfeito com V-ing
I couldn't have been stressing you couldn't have been stressing he couldn't have been stressing we couldn't have been stressing you couldn't have been stressing they couldn't have been stressing
Forma interrogativa
Forma simple
could I stress? could you stress? could he stress? could we stress? could you stress? could they stress?
Forma com V-ing
could I be stressing? could you be stressing? could he be stressing? could we be stressing? could you be stressing? could they be stressing?
Perfeito
could I have stressed? could you have stressed? could he have stressed? could we have stressed? could you have stressed? could they have stressed?
Perfeito com V-ing
could I have been stressing? could you have been stressing? could he have been stressing? could we have been stressing? could you have been stressing? could they have been stressing?
Forma interro-Negação
Forma simple
couldn't I stress? couldn't you stress? couldn't he stress? couldn't we stress? couldn't you stress? couldn't they stress?
Forma com V-ing
couldn't I be stressing? couldn't you be stressing? couldn't he be stressing? couldn't we be stressing? couldn't you be stressing? couldn't they be stressing?
Perfeito
couldn't I have stressed? couldn't you have stressed? couldn't he have stressed? couldn't we have stressed? couldn't you have stressed? couldn't they have stressed?
Perfeito com V-ing
couldn't I have been stressing? couldn't you have been stressing? couldn't he have been stressing? couldn't we have been stressing? couldn't you have been stressing? couldn't they have been stressing?