I can avert you can avert he can avert we can avert you can avert they can avert
V-ing form
I can be averting you can be averting he can be averting we can be averting you can be averting they can be averting
Perfect
I can have averted you can have averted he can have averted we can have averted you can have averted they can have averted
V-ing perfect
I can have been averting you can have been averting he can have been averting we can have been averting you can have been averting they can have been averting
Negation
Simple form
I can't avert you can't avert he can't avert we can't avert you can't avert they can't avert
V-ing form
I can't be averting you can't be averting he can't be averting we can't be averting you can't be averting they can't be averting
Perfect
I can't have averted you can't have averted he can't have averted we can't have averted you can't have averted they can't have averted
V-ing perfect
I can't have been averting you can't have been averting he can't have been averting we can't have been averting you can't have been averting they can't have been averting
Interrogative form
Simple form
can I avert? can you avert? can he avert? can we avert? can you avert? can they avert?
V-ing form
can I be averting? can you be averting? can he be averting? can we be averting? can you be averting? can they be averting?
Perfect
can I have averted? can you have averted? can he have averted? can we have averted? can you have averted? can they have averted?
V-ing perfect
can I have been averting? can you have been averting? can he have been averting? can we have been averting? can you have been averting? can they have been averting?
Interro-negative form
Simple form
can't I avert? can't you avert? can't he avert? can't we avert? can't you avert? can't they avert?
V-ing form
can't I be averting? can't you be averting? can't he be averting? can't we be averting? can't you be averting? can't they be averting?
Perfect
can't I have averted? can't you have averted? can't he have averted? can't we have averted? can't you have averted? can't they have averted?
V-ing perfect
can't I have been averting? can't you have been averting? can't he have been averting? can't we have been averting? can't you have been averting? can't they have been averting?