I can foreswear you can foreswear he can foreswear we can foreswear you can foreswear they can foreswear
V-ing form
I can be foreswearing you can be foreswearing he can be foreswearing we can be foreswearing you can be foreswearing they can be foreswearing
Perfect
I can have foresworn you can have foresworn he can have foresworn we can have foresworn you can have foresworn they can have foresworn
V-ing perfect
I can have been foreswearing you can have been foreswearing he can have been foreswearing we can have been foreswearing you can have been foreswearing they can have been foreswearing
Negation
Simple form
I can't foreswear you can't foreswear he can't foreswear we can't foreswear you can't foreswear they can't foreswear
V-ing form
I can't be foreswearing you can't be foreswearing he can't be foreswearing we can't be foreswearing you can't be foreswearing they can't be foreswearing
Perfect
I can't have foresworn you can't have foresworn he can't have foresworn we can't have foresworn you can't have foresworn they can't have foresworn
V-ing perfect
I can't have been foreswearing you can't have been foreswearing he can't have been foreswearing we can't have been foreswearing you can't have been foreswearing they can't have been foreswearing
Interrogative form
Simple form
can I foreswear? can you foreswear? can he foreswear? can we foreswear? can you foreswear? can they foreswear?
V-ing form
can I be foreswearing? can you be foreswearing? can he be foreswearing? can we be foreswearing? can you be foreswearing? can they be foreswearing?
Perfect
can I have foresworn? can you have foresworn? can he have foresworn? can we have foresworn? can you have foresworn? can they have foresworn?
V-ing perfect
can I have been foreswearing? can you have been foreswearing? can he have been foreswearing? can we have been foreswearing? can you have been foreswearing? can they have been foreswearing?
Interro-negative form
Simple form
can't I foreswear? can't you foreswear? can't he foreswear? can't we foreswear? can't you foreswear? can't they foreswear?
V-ing form
can't I be foreswearing? can't you be foreswearing? can't he be foreswearing? can't we be foreswearing? can't you be foreswearing? can't they be foreswearing?
Perfect
can't I have foresworn? can't you have foresworn? can't he have foresworn? can't we have foresworn? can't you have foresworn? can't they have foresworn?
V-ing perfect
can't I have been foreswearing? can't you have been foreswearing? can't he have been foreswearing? can't we have been foreswearing? can't you have been foreswearing? can't they have been foreswearing?