I can windsurf you can windsurf she can windsurf we can windsurf you can windsurf they can windsurf
Forma com V-ing
I can be windsurfing you can be windsurfing she can be windsurfing we can be windsurfing you can be windsurfing they can be windsurfing
Perfeito
I can have windsurfed you can have windsurfed she can have windsurfed we can have windsurfed you can have windsurfed they can have windsurfed
Perfeito com V-ing
I can have been windsurfing you can have been windsurfing she can have been windsurfing we can have been windsurfing you can have been windsurfing they can have been windsurfing
Negação
Forma simple
I can't windsurf you can't windsurf she can't windsurf we can't windsurf you can't windsurf they can't windsurf
Forma com V-ing
I can't be windsurfing you can't be windsurfing she can't be windsurfing we can't be windsurfing you can't be windsurfing they can't be windsurfing
Perfeito
I can't have windsurfed you can't have windsurfed she can't have windsurfed we can't have windsurfed you can't have windsurfed they can't have windsurfed
Perfeito com V-ing
I can't have been windsurfing you can't have been windsurfing she can't have been windsurfing we can't have been windsurfing you can't have been windsurfing they can't have been windsurfing
Forma interrogativa
Forma simple
can I windsurf? can you windsurf? can she windsurf? can we windsurf? can you windsurf? can they windsurf?
Forma com V-ing
can I be windsurfing? can you be windsurfing? can she be windsurfing? can we be windsurfing? can you be windsurfing? can they be windsurfing?
Perfeito
can I have windsurfed? can you have windsurfed? can she have windsurfed? can we have windsurfed? can you have windsurfed? can they have windsurfed?
Perfeito com V-ing
can I have been windsurfing? can you have been windsurfing? can she have been windsurfing? can we have been windsurfing? can you have been windsurfing? can they have been windsurfing?
Forma interro-Negação
Forma simple
can't I windsurf? can't you windsurf? can't she windsurf? can't we windsurf? can't you windsurf? can't they windsurf?
Forma com V-ing
can't I be windsurfing? can't you be windsurfing? can't she be windsurfing? can't we be windsurfing? can't you be windsurfing? can't they be windsurfing?
Perfeito
can't I have windsurfed? can't you have windsurfed? can't she have windsurfed? can't we have windsurfed? can't you have windsurfed? can't they have windsurfed?
Perfeito com V-ing
can't I have been windsurfing? can't you have been windsurfing? can't she have been windsurfing? can't we have been windsurfing? can't you have been windsurfing? can't they have been windsurfing?