I could lean you could lean he could lean we could lean you could lean they could lean
Forma con V-ing
I could be leaning you could be leaning he could be leaning we could be leaning you could be leaning they could be leaning
Perfecto
I could have leaned you could have leaned he could have leaned we could have leaned you could have leaned they could have leaned
Perfecto con V-ing
I could have been leaning you could have been leaning he could have been leaning we could have been leaning you could have been leaning they could have been leaning
Negación
Forma simple
I couldn't lean you couldn't lean he couldn't lean we couldn't lean you couldn't lean they couldn't lean
Forma con V-ing
I couldn't be leaning you couldn't be leaning he couldn't be leaning we couldn't be leaning you couldn't be leaning they couldn't be leaning
Perfecto
I couldn't have leaned you couldn't have leaned he couldn't have leaned we couldn't have leaned you couldn't have leaned they couldn't have leaned
Perfecto con V-ing
I couldn't have been leaning you couldn't have been leaning he couldn't have been leaning we couldn't have been leaning you couldn't have been leaning they couldn't have been leaning
Forma interrogativa
Forma simple
could I lean? could you lean? could he lean? could we lean? could you lean? could they lean?
Forma con V-ing
could I be leaning? could you be leaning? could he be leaning? could we be leaning? could you be leaning? could they be leaning?
Perfecto
could I have leaned? could you have leaned? could he have leaned? could we have leaned? could you have leaned? could they have leaned?
Perfecto con V-ing
could I have been leaning? could you have been leaning? could he have been leaning? could we have been leaning? could you have been leaning? could they have been leaning?
Forma interro-negativa
Forma simple
couldn't I lean? couldn't you lean? couldn't he lean? couldn't we lean? couldn't you lean? couldn't they lean?
Forma con V-ing
couldn't I be leaning? couldn't you be leaning? couldn't he be leaning? couldn't we be leaning? couldn't you be leaning? couldn't they be leaning?
Perfecto
couldn't I have leaned? couldn't you have leaned? couldn't he have leaned? couldn't we have leaned? couldn't you have leaned? couldn't they have leaned?
Perfecto con V-ing
couldn't I have been leaning? couldn't you have been leaning? couldn't he have been leaning? couldn't we have been leaning? couldn't you have been leaning? couldn't they have been leaning?