I can presterilise you can presterilise he can presterilise we can presterilise you can presterilise they can presterilise
V-ing form
I can be presterilising you can be presterilising he can be presterilising we can be presterilising you can be presterilising they can be presterilising
Perfect
I can have presterilised you can have presterilised he can have presterilised we can have presterilised you can have presterilised they can have presterilised
V-ing perfect
I can have been presterilising you can have been presterilising he can have been presterilising we can have been presterilising you can have been presterilising they can have been presterilising
Negation
Simple form
I can't presterilise you can't presterilise he can't presterilise we can't presterilise you can't presterilise they can't presterilise
V-ing form
I can't be presterilising you can't be presterilising he can't be presterilising we can't be presterilising you can't be presterilising they can't be presterilising
Perfect
I can't have presterilised you can't have presterilised he can't have presterilised we can't have presterilised you can't have presterilised they can't have presterilised
V-ing perfect
I can't have been presterilising you can't have been presterilising he can't have been presterilising we can't have been presterilising you can't have been presterilising they can't have been presterilising
Interrogative form
Simple form
can I presterilise? can you presterilise? can he presterilise? can we presterilise? can you presterilise? can they presterilise?
V-ing form
can I be presterilising? can you be presterilising? can he be presterilising? can we be presterilising? can you be presterilising? can they be presterilising?
Perfect
can I have presterilised? can you have presterilised? can he have presterilised? can we have presterilised? can you have presterilised? can they have presterilised?
V-ing perfect
can I have been presterilising? can you have been presterilising? can he have been presterilising? can we have been presterilising? can you have been presterilising? can they have been presterilising?
Interro-negative form
Simple form
can't I presterilise? can't you presterilise? can't he presterilise? can't we presterilise? can't you presterilise? can't they presterilise?
V-ing form
can't I be presterilising? can't you be presterilising? can't he be presterilising? can't we be presterilising? can't you be presterilising? can't they be presterilising?
Perfect
can't I have presterilised? can't you have presterilised? can't he have presterilised? can't we have presterilised? can't you have presterilised? can't they have presterilised?
V-ing perfect
can't I have been presterilising? can't you have been presterilising? can't he have been presterilising? can't we have been presterilising? can't you have been presterilising? can't they have been presterilising?