I can commission you can commission he can commission we can commission you can commission they can commission
V-ing form
I can be commissioning you can be commissioning he can be commissioning we can be commissioning you can be commissioning they can be commissioning
Perfect
I can have commissioned you can have commissioned he can have commissioned we can have commissioned you can have commissioned they can have commissioned
V-ing perfect
I can have been commissioning you can have been commissioning he can have been commissioning we can have been commissioning you can have been commissioning they can have been commissioning
Negation
Simple form
I cannot commission you cannot commission he cannot commission we cannot commission you cannot commission they cannot commission
V-ing form
I cannot be commissioning you cannot be commissioning he cannot be commissioning we cannot be commissioning you cannot be commissioning they cannot be commissioning
Perfect
I cannot have commissioned you cannot have commissioned he cannot have commissioned we cannot have commissioned you cannot have commissioned they cannot have commissioned
V-ing perfect
I cannot have been commissioning you cannot have been commissioning he cannot have been commissioning we cannot have been commissioning you cannot have been commissioning they cannot have been commissioning
Interrogative form
Simple form
can I commission? can you commission? can he commission? can we commission? can you commission? can they commission?
V-ing form
can I be commissioning? can you be commissioning? can he be commissioning? can we be commissioning? can you be commissioning? can they be commissioning?
Perfect
can I have commissioned? can you have commissioned? can he have commissioned? can we have commissioned? can you have commissioned? can they have commissioned?
V-ing perfect
can I have been commissioning? can you have been commissioning? can he have been commissioning? can we have been commissioning? can you have been commissioning? can they have been commissioning?
Interro-negative form
Simple form
can I not commission? can you not commission? can he not commission? can we not commission? can you not commission? can they not commission?
V-ing form
can I not be commissioning? can you not be commissioning? can he not be commissioning? can we not be commissioning? can you not be commissioning? can they not be commissioning?
Perfect
can I not have commissioned? can you not have commissioned? can he not have commissioned? can we not have commissioned? can you not have commissioned? can they not have commissioned?
V-ing perfect
can I not have been commissioning? can you not have been commissioning? can he not have been commissioning? can we not have been commissioning? can you not have been commissioning? can they not have been commissioning?