Conjugación del verbo inglés
COULD PIECE

Verbo regular: piece - pieced - pieced

Afirmación

Forma simple	Forma con V-ing
I could piece you could piece he could piece we could piece you could piece they could piece	I could be piecing you could be piecing he could be piecing we could be piecing you could be piecing they could be piecing
Perfecto	Perfecto con V-ing
I could have pieced you could have pieced he could have pieced we could have pieced you could have pieced they could have pieced	I could have been piecing you could have been piecing he could have been piecing we could have been piecing you could have been piecing they could have been piecing

Negación

Forma simple	Forma con V-ing
I couldn't piece you couldn't piece he couldn't piece we couldn't piece you couldn't piece they couldn't piece	I couldn't be piecing you couldn't be piecing he couldn't be piecing we couldn't be piecing you couldn't be piecing they couldn't be piecing
Perfecto	Perfecto con V-ing
I couldn't have pieced you couldn't have pieced he couldn't have pieced we couldn't have pieced you couldn't have pieced they couldn't have pieced	I couldn't have been piecing you couldn't have been piecing he couldn't have been piecing we couldn't have been piecing you couldn't have been piecing they couldn't have been piecing

Forma interrogativa

Forma simple	Forma con V-ing
could I piece? could you piece? could he piece? could we piece? could you piece? could they piece?	could I be piecing? could you be piecing? could he be piecing? could we be piecing? could you be piecing? could they be piecing?
Perfecto	Perfecto con V-ing
could I have pieced? could you have pieced? could he have pieced? could we have pieced? could you have pieced? could they have pieced?	could I have been piecing? could you have been piecing? could he have been piecing? could we have been piecing? could you have been piecing? could they have been piecing?

Forma interro-negativa

Forma simple	Forma con V-ing
couldn't I piece? couldn't you piece? couldn't he piece? couldn't we piece? couldn't you piece? couldn't they piece?	couldn't I be piecing? couldn't you be piecing? couldn't he be piecing? couldn't we be piecing? couldn't you be piecing? couldn't they be piecing?
Perfecto	Perfecto con V-ing
couldn't I have pieced? couldn't you have pieced? couldn't he have pieced? couldn't we have pieced? couldn't you have pieced? couldn't they have pieced?	couldn't I have been piecing? couldn't you have been piecing? couldn't he have been piecing? couldn't we have been piecing? couldn't you have been piecing? couldn't they have been piecing?