Conjugação do verbo inglês
COULD DUMB

Verbo regular: dumb - dumbed - dumbed

Afirmação

Forma simple	Forma com V-ing
I could dumb you could dumb he could dumb we could dumb you could dumb they could dumb	I could be dumbing you could be dumbing he could be dumbing we could be dumbing you could be dumbing they could be dumbing
Perfeito	Perfeito com V-ing
I could have dumbed you could have dumbed he could have dumbed we could have dumbed you could have dumbed they could have dumbed	I could have been dumbing you could have been dumbing he could have been dumbing we could have been dumbing you could have been dumbing they could have been dumbing

Negação

Forma simple	Forma com V-ing
I couldn't dumb you couldn't dumb he couldn't dumb we couldn't dumb you couldn't dumb they couldn't dumb	I couldn't be dumbing you couldn't be dumbing he couldn't be dumbing we couldn't be dumbing you couldn't be dumbing they couldn't be dumbing
Perfeito	Perfeito com V-ing
I couldn't have dumbed you couldn't have dumbed he couldn't have dumbed we couldn't have dumbed you couldn't have dumbed they couldn't have dumbed	I couldn't have been dumbing you couldn't have been dumbing he couldn't have been dumbing we couldn't have been dumbing you couldn't have been dumbing they couldn't have been dumbing

Forma interrogativa

Forma simple	Forma com V-ing
could I dumb? could you dumb? could he dumb? could we dumb? could you dumb? could they dumb?	could I be dumbing? could you be dumbing? could he be dumbing? could we be dumbing? could you be dumbing? could they be dumbing?
Perfeito	Perfeito com V-ing
could I have dumbed? could you have dumbed? could he have dumbed? could we have dumbed? could you have dumbed? could they have dumbed?	could I have been dumbing? could you have been dumbing? could he have been dumbing? could we have been dumbing? could you have been dumbing? could they have been dumbing?

Forma interro-Negação

Forma simple	Forma com V-ing
couldn't I dumb? couldn't you dumb? couldn't he dumb? couldn't we dumb? couldn't you dumb? couldn't they dumb?	couldn't I be dumbing? couldn't you be dumbing? couldn't he be dumbing? couldn't we be dumbing? couldn't you be dumbing? couldn't they be dumbing?
Perfeito	Perfeito com V-ing
couldn't I have dumbed? couldn't you have dumbed? couldn't he have dumbed? couldn't we have dumbed? couldn't you have dumbed? couldn't they have dumbed?	couldn't I have been dumbing? couldn't you have been dumbing? couldn't he have been dumbing? couldn't we have been dumbing? couldn't you have been dumbing? couldn't they have been dumbing?