I can singularise you can singularise he can singularise we can singularise you can singularise they can singularise
V-ing form
I can be singularising you can be singularising he can be singularising we can be singularising you can be singularising they can be singularising
Perfect
I can have singularised you can have singularised he can have singularised we can have singularised you can have singularised they can have singularised
V-ing perfect
I can have been singularising you can have been singularising he can have been singularising we can have been singularising you can have been singularising they can have been singularising
Negation
Simple form
I cannot singularise you cannot singularise he cannot singularise we cannot singularise you cannot singularise they cannot singularise
V-ing form
I cannot be singularising you cannot be singularising he cannot be singularising we cannot be singularising you cannot be singularising they cannot be singularising
Perfect
I cannot have singularised you cannot have singularised he cannot have singularised we cannot have singularised you cannot have singularised they cannot have singularised
V-ing perfect
I cannot have been singularising you cannot have been singularising he cannot have been singularising we cannot have been singularising you cannot have been singularising they cannot have been singularising
Interrogative form
Simple form
can I singularise? can you singularise? can he singularise? can we singularise? can you singularise? can they singularise?
V-ing form
can I be singularising? can you be singularising? can he be singularising? can we be singularising? can you be singularising? can they be singularising?
Perfect
can I have singularised? can you have singularised? can he have singularised? can we have singularised? can you have singularised? can they have singularised?
V-ing perfect
can I have been singularising? can you have been singularising? can he have been singularising? can we have been singularising? can you have been singularising? can they have been singularising?
Interro-negative form
Simple form
can I not singularise? can you not singularise? can he not singularise? can we not singularise? can you not singularise? can they not singularise?
V-ing form
can I not be singularising? can you not be singularising? can he not be singularising? can we not be singularising? can you not be singularising? can they not be singularising?
Perfect
can I not have singularised? can you not have singularised? can he not have singularised? can we not have singularised? can you not have singularised? can they not have singularised?
V-ing perfect
can I not have been singularising? can you not have been singularising? can he not have been singularising? can we not have been singularising? can you not have been singularising? can they not have been singularising?