I can factorise you can factorise she can factorise we can factorise you can factorise they can factorise
V-ing form
I can be factorising you can be factorising she can be factorising we can be factorising you can be factorising they can be factorising
Perfect
I can have factorised you can have factorised she 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 she 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 she cannot factorise we cannot factorise you cannot factorise they cannot factorise
V-ing form
I cannot be factorising you cannot be factorising she cannot be factorising we cannot be factorising you cannot be factorising they cannot be factorising
Perfect
I cannot have factorised you cannot have factorised she 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 she 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 she factorise? can we factorise? can you factorise? can they factorise?
V-ing form
can I be factorising? can you be factorising? can she be factorising? can we be factorising? can you be factorising? can they be factorising?
Perfect
can I have factorised? can you have factorised? can she 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 she 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 she 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 she 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 she 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 she not have been factorising? can we not have been factorising? can you not have been factorising? can they not have been factorising?