I should categorise you should categorise he should categorise we should categorise you should categorise they should categorise
V-ing form
I should be categorising you should be categorising he should be categorising we should be categorising you should be categorising they should be categorising
Perfect
I should have categorised you should have categorised he should have categorised we should have categorised you should have categorised they should have categorised
V-ing perfect
I should have been categorising you should have been categorising he should have been categorising we should have been categorising you should have been categorising they should have been categorising
Negation
Simple form
I should not categorise you should not categorise he should not categorise we should not categorise you should not categorise they should not categorise
V-ing form
I should not be categorising you should not be categorising he should not be categorising we should not be categorising you should not be categorising they should not be categorising
Perfect
I should not have categorised you should not have categorised he should not have categorised we should not have categorised you should not have categorised they should not have categorised
V-ing perfect
I should not have been categorising you should not have been categorising he should not have been categorising we should not have been categorising you should not have been categorising they should not have been categorising
Interrogative form
Simple form
should I categorise? should you categorise? should he categorise? should we categorise? should you categorise? should they categorise?
V-ing form
should I be categorising? should you be categorising? should he be categorising? should we be categorising? should you be categorising? should they be categorising?
Perfect
should I have categorised? should you have categorised? should he have categorised? should we have categorised? should you have categorised? should they have categorised?
V-ing perfect
should I have been categorising? should you have been categorising? should he have been categorising? should we have been categorising? should you have been categorising? should they have been categorising?
Interro-negative form
Simple form
should I not categorise? should you not categorise? should he not categorise? should we not categorise? should you not categorise? should they not categorise?
V-ing form
should I not be categorising? should you not be categorising? should he not be categorising? should we not be categorising? should you not be categorising? should they not be categorising?
Perfect
should I not have categorised? should you not have categorised? should he not have categorised? should we not have categorised? should you not have categorised? should they not have categorised?
V-ing perfect
should I not have been categorising? should you not have been categorising? should he not have been categorising? should we not have been categorising? should you not have been categorising? should they not have been categorising?