I can mortgage you can mortgage he can mortgage we can mortgage you can mortgage they can mortgage
V-ing form
I can be mortgaging you can be mortgaging he can be mortgaging we can be mortgaging you can be mortgaging they can be mortgaging
Perfect
I can have mortgaged you can have mortgaged he can have mortgaged we can have mortgaged you can have mortgaged they can have mortgaged
V-ing perfect
I can have been mortgaging you can have been mortgaging he can have been mortgaging we can have been mortgaging you can have been mortgaging they can have been mortgaging
Negation
Simple form
I can't mortgage you can't mortgage he can't mortgage we can't mortgage you can't mortgage they can't mortgage
V-ing form
I can't be mortgaging you can't be mortgaging he can't be mortgaging we can't be mortgaging you can't be mortgaging they can't be mortgaging
Perfect
I can't have mortgaged you can't have mortgaged he can't have mortgaged we can't have mortgaged you can't have mortgaged they can't have mortgaged
V-ing perfect
I can't have been mortgaging you can't have been mortgaging he can't have been mortgaging we can't have been mortgaging you can't have been mortgaging they can't have been mortgaging
Interrogative form
Simple form
can I mortgage? can you mortgage? can he mortgage? can we mortgage? can you mortgage? can they mortgage?
V-ing form
can I be mortgaging? can you be mortgaging? can he be mortgaging? can we be mortgaging? can you be mortgaging? can they be mortgaging?
Perfect
can I have mortgaged? can you have mortgaged? can he have mortgaged? can we have mortgaged? can you have mortgaged? can they have mortgaged?
V-ing perfect
can I have been mortgaging? can you have been mortgaging? can he have been mortgaging? can we have been mortgaging? can you have been mortgaging? can they have been mortgaging?
Interro-negative form
Simple form
can't I mortgage? can't you mortgage? can't he mortgage? can't we mortgage? can't you mortgage? can't they mortgage?
V-ing form
can't I be mortgaging? can't you be mortgaging? can't he be mortgaging? can't we be mortgaging? can't you be mortgaging? can't they be mortgaging?
Perfect
can't I have mortgaged? can't you have mortgaged? can't he have mortgaged? can't we have mortgaged? can't you have mortgaged? can't they have mortgaged?
V-ing perfect
can't I have been mortgaging? can't you have been mortgaging? can't he have been mortgaging? can't we have been mortgaging? can't you have been mortgaging? can't they have been mortgaging?