I can sail you can sail he can sail we can sail you can sail they can sail
Forme en 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
Perfect
I can have sailed you can have sailed he can have sailed we can have sailed you can have sailed they can have sailed
Perfect en 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
Négation
Forme 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
Forme en 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
Perfect
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
Perfect en 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
Forme interrogative
Forme simple
can I sail? can you sail? can he sail? can we sail? can you sail? can they sail?
Forme en 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?
Perfect
can I have sailed? can you have sailed? can he have sailed? can we have sailed? can you have sailed? can they have sailed?
Perfect en 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?
Forme interro-négative
Forme 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?
Forme en 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?
Perfect
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?
Perfect en 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?