I can factorise you can factorise he can factorise we can factorise you can factorise they can factorise
V-ing form
I can be factorising you can be factorising he can be factorising we can be factorising you can be factorising they can be factorising
Perfect
I can have factorised you can have factorised he can have factorised we can have factorised you can have factorised they can have factorised
V-ing perfect
I can have been factorising you can have been factorising he can have been factorising we can have been factorising you can have been factorising they can have been factorising
Negation
Simple form
I cannot factorise you cannot factorise he cannot factorise we cannot factorise you cannot factorise they cannot factorise
V-ing form
I cannot be factorising you cannot be factorising he cannot be factorising we cannot be factorising you cannot be factorising they cannot be factorising
Perfect
I cannot have factorised you cannot have factorised he cannot have factorised we cannot have factorised you cannot have factorised they cannot have factorised
V-ing perfect
I cannot have been factorising you cannot have been factorising he cannot have been factorising we cannot have been factorising you cannot have been factorising they cannot have been factorising
Interrogative form
Simple form
can I factorise? can you factorise? can he factorise? can we factorise? can you factorise? can they factorise?
V-ing form
can I be factorising? can you be factorising? can he be factorising? can we be factorising? can you be factorising? can they be factorising?
Perfect
can I have factorised? can you have factorised? can he have factorised? can we have factorised? can you have factorised? can they have factorised?
V-ing perfect
can I have been factorising? can you have been factorising? can he have been factorising? can we have been factorising? can you have been factorising? can they have been factorising?
Interro-negative form
Simple form
can I not factorise? can you not factorise? can he not factorise? can we not factorise? can you not factorise? can they not factorise?
V-ing form
can I not be factorising? can you not be factorising? can he not be factorising? can we not be factorising? can you not be factorising? can they not be factorising?
Perfect
can I not have factorised? can you not have factorised? can he not have factorised? can we not have factorised? can you not have factorised? can they not have factorised?
V-ing perfect
can I not have been factorising? can you not have been factorising? can he not have been factorising? can we not have been factorising? can you not have been factorising? can they not have been factorising?