I can overassert you can overassert he can overassert we can overassert you can overassert they can overassert
V-ing form
I can be overasserting you can be overasserting he can be overasserting we can be overasserting you can be overasserting they can be overasserting
Perfect
I can have overasserted you can have overasserted he can have overasserted we can have overasserted you can have overasserted they can have overasserted
V-ing perfect
I can have been overasserting you can have been overasserting he can have been overasserting we can have been overasserting you can have been overasserting they can have been overasserting
Negation
Simple form
I can't overassert you can't overassert he can't overassert we can't overassert you can't overassert they can't overassert
V-ing form
I can't be overasserting you can't be overasserting he can't be overasserting we can't be overasserting you can't be overasserting they can't be overasserting
Perfect
I can't have overasserted you can't have overasserted he can't have overasserted we can't have overasserted you can't have overasserted they can't have overasserted
V-ing perfect
I can't have been overasserting you can't have been overasserting he can't have been overasserting we can't have been overasserting you can't have been overasserting they can't have been overasserting
Interrogative form
Simple form
can I overassert? can you overassert? can he overassert? can we overassert? can you overassert? can they overassert?
V-ing form
can I be overasserting? can you be overasserting? can he be overasserting? can we be overasserting? can you be overasserting? can they be overasserting?
Perfect
can I have overasserted? can you have overasserted? can he have overasserted? can we have overasserted? can you have overasserted? can they have overasserted?
V-ing perfect
can I have been overasserting? can you have been overasserting? can he have been overasserting? can we have been overasserting? can you have been overasserting? can they have been overasserting?
Interro-negative form
Simple form
can't I overassert? can't you overassert? can't he overassert? can't we overassert? can't you overassert? can't they overassert?
V-ing form
can't I be overasserting? can't you be overasserting? can't he be overasserting? can't we be overasserting? can't you be overasserting? can't they be overasserting?
Perfect
can't I have overasserted? can't you have overasserted? can't he have overasserted? can't we have overasserted? can't you have overasserted? can't they have overasserted?
V-ing perfect
can't I have been overasserting? can't you have been overasserting? can't he have been overasserting? can't we have been overasserting? can't you have been overasserting? can't they have been overasserting?