I can alight you can alight he can alight we can alight you can alight they can alight
V-ing form
I can be alighting you can be alighting he can be alighting we can be alighting you can be alighting they can be alighting
Perfect
I can have alighted you can have alighted he 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 he can have been alighting we can have been alighting you can have been alighting they can have been alighting
Negation
Simple form
I can't alight you can't alight he can't alight we can't alight you can't alight they can't alight
V-ing form
I can't be alighting you can't be alighting he can't be alighting we can't be alighting you can't be alighting they can't be alighting
Perfect
I can't have alighted you can't have alighted he can't have alighted we can't have alighted you can't have alighted they can't have alighted
V-ing perfect
I can't have been alighting you can't have been alighting he can't have been alighting we can't have been alighting you can't have been alighting they can't have been alighting
Interrogative form
Simple form
can I alight? can you alight? can he alight? can we alight? can you alight? can they alight?
V-ing form
can I be alighting? can you be alighting? can he be alighting? can we be alighting? can you be alighting? can they be alighting?
Perfect
can I have alighted? can you have alighted? can he 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 he have been alighting? can we have been alighting? can you have been alighting? can they have been alighting?
Interro-negative form
Simple form
can't I alight? can't you alight? can't he alight? can't we alight? can't you alight? can't they alight?
V-ing form
can't I be alighting? can't you be alighting? can't he be alighting? can't we be alighting? can't you be alighting? can't they be alighting?
Perfect
can't I have alighted? can't you have alighted? can't he have alighted? can't we have alighted? can't you have alighted? can't they have alighted?
V-ing perfect
can't I have been alighting? can't you have been alighting? can't he have been alighting? can't we have been alighting? can't you have been alighting? can't they have been alighting?