I could stir you could stir she could stir we could stir you could stir they could stir
Forma con V-ing
I could be stirring you could be stirring she could be stirring we could be stirring you could be stirring they could be stirring
Perfecto
I could have stirred you could have stirred she could have stirred we could have stirred you could have stirred they could have stirred
Perfecto con V-ing
I could have been stirring you could have been stirring she could have been stirring we could have been stirring you could have been stirring they could have been stirring
Negación
Forma simple
I couldn't stir you couldn't stir she couldn't stir we couldn't stir you couldn't stir they couldn't stir
Forma con V-ing
I couldn't be stirring you couldn't be stirring she couldn't be stirring we couldn't be stirring you couldn't be stirring they couldn't be stirring
Perfecto
I couldn't have stirred you couldn't have stirred she couldn't have stirred we couldn't have stirred you couldn't have stirred they couldn't have stirred
Perfecto con V-ing
I couldn't have been stirring you couldn't have been stirring she couldn't have been stirring we couldn't have been stirring you couldn't have been stirring they couldn't have been stirring
Forma interrogativa
Forma simple
could I stir? could you stir? could she stir? could we stir? could you stir? could they stir?
Forma con V-ing
could I be stirring? could you be stirring? could she be stirring? could we be stirring? could you be stirring? could they be stirring?
Perfecto
could I have stirred? could you have stirred? could she have stirred? could we have stirred? could you have stirred? could they have stirred?
Perfecto con V-ing
could I have been stirring? could you have been stirring? could she have been stirring? could we have been stirring? could you have been stirring? could they have been stirring?
Forma interro-negativa
Forma simple
couldn't I stir? couldn't you stir? couldn't she stir? couldn't we stir? couldn't you stir? couldn't they stir?
Forma con V-ing
couldn't I be stirring? couldn't you be stirring? couldn't she be stirring? couldn't we be stirring? couldn't you be stirring? couldn't they be stirring?
Perfecto
couldn't I have stirred? couldn't you have stirred? couldn't she have stirred? couldn't we have stirred? couldn't you have stirred? couldn't they have stirred?
Perfecto con V-ing
couldn't I have been stirring? couldn't you have been stirring? couldn't she have been stirring? couldn't we have been stirring? couldn't you have been stirring? couldn't they have been stirring?