I can light you can light he can light we can light you can light they can light
V-ing form
I can be lighting you can be lighting he can be lighting we can be lighting you can be lighting they can be lighting
Perfect
I can have lit you can have lit he can have lit we can have lit you can have lit they can have lit
V-ing perfect
I can have been lighting you can have been lighting he can have been lighting we can have been lighting you can have been lighting they can have been lighting
Negation
Simple form
I cannot light you cannot light he cannot light we cannot light you cannot light they cannot light
V-ing form
I cannot be lighting you cannot be lighting he cannot be lighting we cannot be lighting you cannot be lighting they cannot be lighting
Perfect
I cannot have lit you cannot have lit he cannot have lit we cannot have lit you cannot have lit they cannot have lit
V-ing perfect
I cannot have been lighting you cannot have been lighting he cannot have been lighting we cannot have been lighting you cannot have been lighting they cannot have been lighting
Interrogative form
Simple form
can I light? can you light? can he light? can we light? can you light? can they light?
V-ing form
can I be lighting? can you be lighting? can he be lighting? can we be lighting? can you be lighting? can they be lighting?
Perfect
can I have lit? can you have lit? can he have lit? can we have lit? can you have lit? can they have lit?
V-ing perfect
can I have been lighting? can you have been lighting? can he have been lighting? can we have been lighting? can you have been lighting? can they have been lighting?
Interro-negative form
Simple form
can I not light? can you not light? can he not light? can we not light? can you not light? can they not light?
V-ing form
can I not be lighting? can you not be lighting? can he not be lighting? can we not be lighting? can you not be lighting? can they not be lighting?
Perfect
can I not have lit? can you not have lit? can he not have lit? can we not have lit? can you not have lit? can they not have lit?
V-ing perfect
can I not have been lighting? can you not have been lighting? can he not have been lighting? can we not have been lighting? can you not have been lighting? can they not have been lighting?