I can alight you can alight she can alight we can alight you can alight they can alight
V-ing form
I can be alighting you can be alighting she can be alighting we can be alighting you can be alighting they can be alighting
Perfect
I can have alighted you can have alighted she can have alighted we can have alighted you can have alighted they can have alighted
V-ing perfect
I can have been alighting you can have been alighting she can have been alighting we can have been alighting you can have been alighting they can have been alighting
Negation
Simple form
I cannot alight you cannot alight she cannot alight we cannot alight you cannot alight they cannot alight
V-ing form
I cannot be alighting you cannot be alighting she cannot be alighting we cannot be alighting you cannot be alighting they cannot be alighting
Perfect
I cannot have alighted you cannot have alighted she cannot have alighted we cannot have alighted you cannot have alighted they cannot have alighted
V-ing perfect
I cannot have been alighting you cannot have been alighting she cannot have been alighting we cannot have been alighting you cannot have been alighting they cannot have been alighting
Interrogative form
Simple form
can I alight? can you alight? can she alight? can we alight? can you alight? can they alight?
V-ing form
can I be alighting? can you be alighting? can she be alighting? can we be alighting? can you be alighting? can they be alighting?
Perfect
can I have alighted? can you have alighted? can she have alighted? can we have alighted? can you have alighted? can they have alighted?
V-ing perfect
can I have been alighting? can you have been alighting? can she have been alighting? can we have been alighting? can you have been alighting? can they have been alighting?
Interro-negative form
Simple form
can I not alight? can you not alight? can she not alight? can we not alight? can you not alight? can they not alight?
V-ing form
can I not be alighting? can you not be alighting? can she not be alighting? can we not be alighting? can you not be alighting? can they not be alighting?
Perfect
can I not have alighted? can you not have alighted? can she not have alighted? can we not have alighted? can you not have alighted? can they not have alighted?
V-ing perfect
can I not have been alighting? can you not have been alighting? can she not have been alighting? can we not have been alighting? can you not have been alighting? can they not have been alighting?