I can underline you can underline he can underline we can underline you can underline they can underline
Forme en V-ing
I can be underlining you can be underlining he can be underlining we can be underlining you can be underlining they can be underlining
Perfect
I can have underlined you can have underlined he can have underlined we can have underlined you can have underlined they can have underlined
Perfect en V-ing
I can have been underlining you can have been underlining he can have been underlining we can have been underlining you can have been underlining they can have been underlining
Négation
Forme simple
I can't underline you can't underline he can't underline we can't underline you can't underline they can't underline
Forme en V-ing
I can't be underlining you can't be underlining he can't be underlining we can't be underlining you can't be underlining they can't be underlining
Perfect
I can't have underlined you can't have underlined he can't have underlined we can't have underlined you can't have underlined they can't have underlined
Perfect en V-ing
I can't have been underlining you can't have been underlining he can't have been underlining we can't have been underlining you can't have been underlining they can't have been underlining
Forme interrogative
Forme simple
can I underline? can you underline? can he underline? can we underline? can you underline? can they underline?
Forme en V-ing
can I be underlining? can you be underlining? can he be underlining? can we be underlining? can you be underlining? can they be underlining?
Perfect
can I have underlined? can you have underlined? can he have underlined? can we have underlined? can you have underlined? can they have underlined?
Perfect en V-ing
can I have been underlining? can you have been underlining? can he have been underlining? can we have been underlining? can you have been underlining? can they have been underlining?
Forme interro-négative
Forme simple
can't I underline? can't you underline? can't he underline? can't we underline? can't you underline? can't they underline?
Forme en V-ing
can't I be underlining? can't you be underlining? can't he be underlining? can't we be underlining? can't you be underlining? can't they be underlining?
Perfect
can't I have underlined? can't you have underlined? can't he have underlined? can't we have underlined? can't you have underlined? can't they have underlined?
Perfect en V-ing
can't I have been underlining? can't you have been underlining? can't he have been underlining? can't we have been underlining? can't you have been underlining? can't they have been underlining?