Verbo regular: back - backed - backed
Forma simple | Forma com V-ing |
I can back you can back he can back we can back you can back they can back | I can be backing you can be backing he can be backing we can be backing you can be backing they can be backing |
Perfeito | Perfeito com V-ing |
I can have backed you can have backed he can have backed we can have backed you can have backed they can have backed | I can have been backing you can have been backing he can have been backing we can have been backing you can have been backing they can have been backing |
Forma simple | Forma com V-ing |
I can't back you can't back he can't back we can't back you can't back they can't back | I can't be backing you can't be backing he can't be backing we can't be backing you can't be backing they can't be backing |
Perfeito | Perfeito com V-ing |
I can't have backed you can't have backed he can't have backed we can't have backed you can't have backed they can't have backed | I can't have been backing you can't have been backing he can't have been backing we can't have been backing you can't have been backing they can't have been backing |
Forma simple | Forma com V-ing |
can I back? can you back? can he back? can we back? can you back? can they back? | can I be backing? can you be backing? can he be backing? can we be backing? can you be backing? can they be backing? |
Perfeito | Perfeito com V-ing |
can I have backed? can you have backed? can he have backed? can we have backed? can you have backed? can they have backed? | can I have been backing? can you have been backing? can he have been backing? can we have been backing? can you have been backing? can they have been backing? |
Forma simple | Forma com V-ing |
can't I back? can't you back? can't he back? can't we back? can't you back? can't they back? | can't I be backing? can't you be backing? can't he be backing? can't we be backing? can't you be backing? can't they be backing? |
Perfeito | Perfeito com V-ing |
can't I have backed? can't you have backed? can't he have backed? can't we have backed? can't you have backed? can't they have backed? | can't I have been backing? can't you have been backing? can't he have been backing? can't we have been backing? can't you have been backing? can't they have been backing? |