I could blunder you could blunder he could blunder we could blunder you could blunder they could blunder
Forma com V-ing
I could be blundering you could be blundering he could be blundering we could be blundering you could be blundering they could be blundering
Perfeito
I could have blundered you could have blundered he could have blundered we could have blundered you could have blundered they could have blundered
Perfeito com V-ing
I could have been blundering you could have been blundering he could have been blundering we could have been blundering you could have been blundering they could have been blundering
Negação
Forma simple
I couldn't blunder you couldn't blunder he couldn't blunder we couldn't blunder you couldn't blunder they couldn't blunder
Forma com V-ing
I couldn't be blundering you couldn't be blundering he couldn't be blundering we couldn't be blundering you couldn't be blundering they couldn't be blundering
Perfeito
I couldn't have blundered you couldn't have blundered he couldn't have blundered we couldn't have blundered you couldn't have blundered they couldn't have blundered
Perfeito com V-ing
I couldn't have been blundering you couldn't have been blundering he couldn't have been blundering we couldn't have been blundering you couldn't have been blundering they couldn't have been blundering
Forma interrogativa
Forma simple
could I blunder? could you blunder? could he blunder? could we blunder? could you blunder? could they blunder?
Forma com V-ing
could I be blundering? could you be blundering? could he be blundering? could we be blundering? could you be blundering? could they be blundering?
Perfeito
could I have blundered? could you have blundered? could he have blundered? could we have blundered? could you have blundered? could they have blundered?
Perfeito com V-ing
could I have been blundering? could you have been blundering? could he have been blundering? could we have been blundering? could you have been blundering? could they have been blundering?
Forma interro-Negação
Forma simple
couldn't I blunder? couldn't you blunder? couldn't he blunder? couldn't we blunder? couldn't you blunder? couldn't they blunder?
Forma com V-ing
couldn't I be blundering? couldn't you be blundering? couldn't he be blundering? couldn't we be blundering? couldn't you be blundering? couldn't they be blundering?
Perfeito
couldn't I have blundered? couldn't you have blundered? couldn't he have blundered? couldn't we have blundered? couldn't you have blundered? couldn't they have blundered?
Perfeito com V-ing
couldn't I have been blundering? couldn't you have been blundering? couldn't he have been blundering? couldn't we have been blundering? couldn't you have been blundering? couldn't they have been blundering?