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