I can reef you can reef he can reef we can reef you can reef they can reef
Forma con V-ing
I can be reefing you can be reefing he can be reefing we can be reefing you can be reefing they can be reefing
Perfecto
I can have reefed you can have reefed he can have reefed we can have reefed you can have reefed they can have reefed
Perfecto con V-ing
I can have been reefing you can have been reefing he can have been reefing we can have been reefing you can have been reefing they can have been reefing
Negación
Forma simple
I can't reef you can't reef he can't reef we can't reef you can't reef they can't reef
Forma con V-ing
I can't be reefing you can't be reefing he can't be reefing we can't be reefing you can't be reefing they can't be reefing
Perfecto
I can't have reefed you can't have reefed he can't have reefed we can't have reefed you can't have reefed they can't have reefed
Perfecto con V-ing
I can't have been reefing you can't have been reefing he can't have been reefing we can't have been reefing you can't have been reefing they can't have been reefing
Forma interrogativa
Forma simple
can I reef? can you reef? can he reef? can we reef? can you reef? can they reef?
Forma con V-ing
can I be reefing? can you be reefing? can he be reefing? can we be reefing? can you be reefing? can they be reefing?
Perfecto
can I have reefed? can you have reefed? can he have reefed? can we have reefed? can you have reefed? can they have reefed?
Perfecto con V-ing
can I have been reefing? can you have been reefing? can he have been reefing? can we have been reefing? can you have been reefing? can they have been reefing?
Forma interro-negativa
Forma simple
can't I reef? can't you reef? can't he reef? can't we reef? can't you reef? can't they reef?
Forma con V-ing
can't I be reefing? can't you be reefing? can't he be reefing? can't we be reefing? can't you be reefing? can't they be reefing?
Perfecto
can't I have reefed? can't you have reefed? can't he have reefed? can't we have reefed? can't you have reefed? can't they have reefed?
Perfecto con V-ing
can't I have been reefing? can't you have been reefing? can't he have been reefing? can't we have been reefing? can't you have been reefing? can't they have been reefing?