I can breathalyse you can breathalyse he can breathalyse we can breathalyse you can breathalyse they can breathalyse
V-ing form
I can be breathalysing you can be breathalysing he can be breathalysing we can be breathalysing you can be breathalysing they can be breathalysing
Perfect
I can have breathalysed you can have breathalysed he can have breathalysed we can have breathalysed you can have breathalysed they can have breathalysed
V-ing perfect
I can have been breathalysing you can have been breathalysing he can have been breathalysing we can have been breathalysing you can have been breathalysing they can have been breathalysing
Negation
Simple form
I cannot breathalyse you cannot breathalyse he cannot breathalyse we cannot breathalyse you cannot breathalyse they cannot breathalyse
V-ing form
I cannot be breathalysing you cannot be breathalysing he cannot be breathalysing we cannot be breathalysing you cannot be breathalysing they cannot be breathalysing
Perfect
I cannot have breathalysed you cannot have breathalysed he cannot have breathalysed we cannot have breathalysed you cannot have breathalysed they cannot have breathalysed
V-ing perfect
I cannot have been breathalysing you cannot have been breathalysing he cannot have been breathalysing we cannot have been breathalysing you cannot have been breathalysing they cannot have been breathalysing
Interrogative form
Simple form
can I breathalyse? can you breathalyse? can he breathalyse? can we breathalyse? can you breathalyse? can they breathalyse?
V-ing form
can I be breathalysing? can you be breathalysing? can he be breathalysing? can we be breathalysing? can you be breathalysing? can they be breathalysing?
Perfect
can I have breathalysed? can you have breathalysed? can he have breathalysed? can we have breathalysed? can you have breathalysed? can they have breathalysed?
V-ing perfect
can I have been breathalysing? can you have been breathalysing? can he have been breathalysing? can we have been breathalysing? can you have been breathalysing? can they have been breathalysing?
Interro-negative form
Simple form
can I not breathalyse? can you not breathalyse? can he not breathalyse? can we not breathalyse? can you not breathalyse? can they not breathalyse?
V-ing form
can I not be breathalysing? can you not be breathalysing? can he not be breathalysing? can we not be breathalysing? can you not be breathalysing? can they not be breathalysing?
Perfect
can I not have breathalysed? can you not have breathalysed? can he not have breathalysed? can we not have breathalysed? can you not have breathalysed? can they not have breathalysed?
V-ing perfect
can I not have been breathalysing? can you not have been breathalysing? can he not have been breathalysing? can we not have been breathalysing? can you not have been breathalysing? can they not have been breathalysing?