I can loft you can loft she can loft we can loft you can loft they can loft
V-ing form
I can be lofting you can be lofting she can be lofting we can be lofting you can be lofting they can be lofting
Perfect
I can have lofted you can have lofted she can have lofted we can have lofted you can have lofted they can have lofted
V-ing perfect
I can have been lofting you can have been lofting she can have been lofting we can have been lofting you can have been lofting they can have been lofting
Negation
Simple form
I can't loft you can't loft she can't loft we can't loft you can't loft they can't loft
V-ing form
I can't be lofting you can't be lofting she can't be lofting we can't be lofting you can't be lofting they can't be lofting
Perfect
I can't have lofted you can't have lofted she can't have lofted we can't have lofted you can't have lofted they can't have lofted
V-ing perfect
I can't have been lofting you can't have been lofting she can't have been lofting we can't have been lofting you can't have been lofting they can't have been lofting
Interrogative form
Simple form
can I loft? can you loft? can she loft? can we loft? can you loft? can they loft?
V-ing form
can I be lofting? can you be lofting? can she be lofting? can we be lofting? can you be lofting? can they be lofting?
Perfect
can I have lofted? can you have lofted? can she have lofted? can we have lofted? can you have lofted? can they have lofted?
V-ing perfect
can I have been lofting? can you have been lofting? can she have been lofting? can we have been lofting? can you have been lofting? can they have been lofting?
Interro-negative form
Simple form
can't I loft? can't you loft? can't she loft? can't we loft? can't you loft? can't they loft?
V-ing form
can't I be lofting? can't you be lofting? can't she be lofting? can't we be lofting? can't you be lofting? can't they be lofting?
Perfect
can't I have lofted? can't you have lofted? can't she have lofted? can't we have lofted? can't you have lofted? can't they have lofted?
V-ing perfect
can't I have been lofting? can't you have been lofting? can't she have been lofting? can't we have been lofting? can't you have been lofting? can't they have been lofting?