I could greet you could greet he could greet we could greet you could greet they could greet
Forma com V-ing
I could be greeting you could be greeting he could be greeting we could be greeting you could be greeting they could be greeting
Perfeito
I could have greeted you could have greeted he could have greeted we could have greeted you could have greeted they could have greeted
Perfeito com V-ing
I could have been greeting you could have been greeting he could have been greeting we could have been greeting you could have been greeting they could have been greeting
Negação
Forma simple
I couldn't greet you couldn't greet he couldn't greet we couldn't greet you couldn't greet they couldn't greet
Forma com V-ing
I couldn't be greeting you couldn't be greeting he couldn't be greeting we couldn't be greeting you couldn't be greeting they couldn't be greeting
Perfeito
I couldn't have greeted you couldn't have greeted he couldn't have greeted we couldn't have greeted you couldn't have greeted they couldn't have greeted
Perfeito com V-ing
I couldn't have been greeting you couldn't have been greeting he couldn't have been greeting we couldn't have been greeting you couldn't have been greeting they couldn't have been greeting
Forma interrogativa
Forma simple
could I greet? could you greet? could he greet? could we greet? could you greet? could they greet?
Forma com V-ing
could I be greeting? could you be greeting? could he be greeting? could we be greeting? could you be greeting? could they be greeting?
Perfeito
could I have greeted? could you have greeted? could he have greeted? could we have greeted? could you have greeted? could they have greeted?
Perfeito com V-ing
could I have been greeting? could you have been greeting? could he have been greeting? could we have been greeting? could you have been greeting? could they have been greeting?
Forma interro-Negação
Forma simple
couldn't I greet? couldn't you greet? couldn't he greet? couldn't we greet? couldn't you greet? couldn't they greet?
Forma com V-ing
couldn't I be greeting? couldn't you be greeting? couldn't he be greeting? couldn't we be greeting? couldn't you be greeting? couldn't they be greeting?
Perfeito
couldn't I have greeted? couldn't you have greeted? couldn't he have greeted? couldn't we have greeted? couldn't you have greeted? couldn't they have greeted?
Perfeito com V-ing
couldn't I have been greeting? couldn't you have been greeting? couldn't he have been greeting? couldn't we have been greeting? couldn't you have been greeting? couldn't they have been greeting?