I can sail you can sail he can sail we can sail you can sail they can sail
Forma con V-ing
I can be sailing you can be sailing he can be sailing we can be sailing you can be sailing they can be sailing
Perfecto
I can have sailed you can have sailed he can have sailed we can have sailed you can have sailed they can have sailed
Perfecto con V-ing
I can have been sailing you can have been sailing he can have been sailing we can have been sailing you can have been sailing they can have been sailing
Negación
Forma simple
I can't sail you can't sail he can't sail we can't sail you can't sail they can't sail
Forma con V-ing
I can't be sailing you can't be sailing he can't be sailing we can't be sailing you can't be sailing they can't be sailing
Perfecto
I can't have sailed you can't have sailed he can't have sailed we can't have sailed you can't have sailed they can't have sailed
Perfecto con V-ing
I can't have been sailing you can't have been sailing he can't have been sailing we can't have been sailing you can't have been sailing they can't have been sailing
Forma interrogativa
Forma simple
can I sail? can you sail? can he sail? can we sail? can you sail? can they sail?
Forma con V-ing
can I be sailing? can you be sailing? can he be sailing? can we be sailing? can you be sailing? can they be sailing?
Perfecto
can I have sailed? can you have sailed? can he have sailed? can we have sailed? can you have sailed? can they have sailed?
Perfecto con V-ing
can I have been sailing? can you have been sailing? can he have been sailing? can we have been sailing? can you have been sailing? can they have been sailing?
Forma interro-negativa
Forma simple
can't I sail? can't you sail? can't he sail? can't we sail? can't you sail? can't they sail?
Forma con V-ing
can't I be sailing? can't you be sailing? can't he be sailing? can't we be sailing? can't you be sailing? can't they be sailing?
Perfecto
can't I have sailed? can't you have sailed? can't he have sailed? can't we have sailed? can't you have sailed? can't they have sailed?
Perfecto con V-ing
can't I have been sailing? can't you have been sailing? can't he have been sailing? can't we have been sailing? can't you have been sailing? can't they have been sailing?