I can light you can light she can light we can light you can light they can light
V-ing form
I can be lighting you can be lighting she can be lighting we can be lighting you can be lighting they can be lighting
Perfect
I can have lit you can have lit she 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 she 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 she cannot light we cannot light you cannot light they cannot light
V-ing form
I cannot be lighting you cannot be lighting she cannot be lighting we cannot be lighting you cannot be lighting they cannot be lighting
Perfect
I cannot have lit you cannot have lit she 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 she 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 she light? can we light? can you light? can they light?
V-ing form
can I be lighting? can you be lighting? can she be lighting? can we be lighting? can you be lighting? can they be lighting?
Perfect
can I have lit? can you have lit? can she 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 she 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 she 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 she 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 she 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 she not have been lighting? can we not have been lighting? can you not have been lighting? can they not have been lighting?