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