I can unlade you can unlade she can unlade we can unlade you can unlade they can unlade
V-ing form
I can be unlading you can be unlading she can be unlading we can be unlading you can be unlading they can be unlading
Perfect
I can have unladed you can have unladed she can have unladed we can have unladed you can have unladed they can have unladed
V-ing perfect
I can have been unlading you can have been unlading she can have been unlading we can have been unlading you can have been unlading they can have been unlading
Negation
Simple form
I can't unlade you can't unlade she can't unlade we can't unlade you can't unlade they can't unlade
V-ing form
I can't be unlading you can't be unlading she can't be unlading we can't be unlading you can't be unlading they can't be unlading
Perfect
I can't have unladed you can't have unladed she can't have unladed we can't have unladed you can't have unladed they can't have unladed
V-ing perfect
I can't have been unlading you can't have been unlading she can't have been unlading we can't have been unlading you can't have been unlading they can't have been unlading
Interrogative form
Simple form
can I unlade? can you unlade? can she unlade? can we unlade? can you unlade? can they unlade?
V-ing form
can I be unlading? can you be unlading? can she be unlading? can we be unlading? can you be unlading? can they be unlading?
Perfect
can I have unladed? can you have unladed? can she have unladed? can we have unladed? can you have unladed? can they have unladed?
V-ing perfect
can I have been unlading? can you have been unlading? can she have been unlading? can we have been unlading? can you have been unlading? can they have been unlading?
Interro-negative form
Simple form
can't I unlade? can't you unlade? can't she unlade? can't we unlade? can't you unlade? can't they unlade?
V-ing form
can't I be unlading? can't you be unlading? can't she be unlading? can't we be unlading? can't you be unlading? can't they be unlading?
Perfect
can't I have unladed? can't you have unladed? can't she have unladed? can't we have unladed? can't you have unladed? can't they have unladed?
V-ing perfect
can't I have been unlading? can't you have been unlading? can't she have been unlading? can't we have been unlading? can't you have been unlading? can't they have been unlading?