I can nail you can nail he can nail we can nail you can nail they can nail
Forma com V-ing
I can be nailing you can be nailing he can be nailing we can be nailing you can be nailing they can be nailing
Perfeito
I can have nailed you can have nailed he can have nailed we can have nailed you can have nailed they can have nailed
Perfeito com V-ing
I can have been nailing you can have been nailing he can have been nailing we can have been nailing you can have been nailing they can have been nailing
Negação
Forma simple
I can't nail you can't nail he can't nail we can't nail you can't nail they can't nail
Forma com V-ing
I can't be nailing you can't be nailing he can't be nailing we can't be nailing you can't be nailing they can't be nailing
Perfeito
I can't have nailed you can't have nailed he can't have nailed we can't have nailed you can't have nailed they can't have nailed
Perfeito com V-ing
I can't have been nailing you can't have been nailing he can't have been nailing we can't have been nailing you can't have been nailing they can't have been nailing
Forma interrogativa
Forma simple
can I nail? can you nail? can he nail? can we nail? can you nail? can they nail?
Forma com V-ing
can I be nailing? can you be nailing? can he be nailing? can we be nailing? can you be nailing? can they be nailing?
Perfeito
can I have nailed? can you have nailed? can he have nailed? can we have nailed? can you have nailed? can they have nailed?
Perfeito com V-ing
can I have been nailing? can you have been nailing? can he have been nailing? can we have been nailing? can you have been nailing? can they have been nailing?
Forma interro-Negação
Forma simple
can't I nail? can't you nail? can't he nail? can't we nail? can't you nail? can't they nail?
Forma com V-ing
can't I be nailing? can't you be nailing? can't he be nailing? can't we be nailing? can't you be nailing? can't they be nailing?
Perfeito
can't I have nailed? can't you have nailed? can't he have nailed? can't we have nailed? can't you have nailed? can't they have nailed?
Perfeito com V-ing
can't I have been nailing? can't you have been nailing? can't he have been nailing? can't we have been nailing? can't you have been nailing? can't they have been nailing?