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 can't light you can't light she can't light we can't light you can't light they can't light
V-ing form
I can't be lighting you can't be lighting she can't be lighting we can't be lighting you can't be lighting they can't be lighting
Perfect
I can't have lit you can't have lit she can't have lit we can't have lit you can't have lit they can't have lit
V-ing perfect
I can't have been lighting you can't have been lighting she can't have been lighting we can't have been lighting you can't have been lighting they can't 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't I light? can't you light? can't she light? can't we light? can't you light? can't they light?
V-ing form
can't I be lighting? can't you be lighting? can't she be lighting? can't we be lighting? can't you be lighting? can't they be lighting?
Perfect
can't I have lit? can't you have lit? can't she have lit? can't we have lit? can't you have lit? can't they have lit?
V-ing perfect
can't I have been lighting? can't you have been lighting? can't she have been lighting? can't we have been lighting? can't you have been lighting? can't they have been lighting?