I should decolourise you should decolourise he should decolourise we should decolourise you should decolourise they should decolourise
V-ing form
I should be decolourising you should be decolourising he should be decolourising we should be decolourising you should be decolourising they should be decolourising
Perfect
I should have decolourised you should have decolourised he should have decolourised we should have decolourised you should have decolourised they should have decolourised
V-ing perfect
I should have been decolourising you should have been decolourising he should have been decolourising we should have been decolourising you should have been decolourising they should have been decolourising
Negation
Simple form
I should not decolourise you should not decolourise he should not decolourise we should not decolourise you should not decolourise they should not decolourise
V-ing form
I should not be decolourising you should not be decolourising he should not be decolourising we should not be decolourising you should not be decolourising they should not be decolourising
Perfect
I should not have decolourised you should not have decolourised he should not have decolourised we should not have decolourised you should not have decolourised they should not have decolourised
V-ing perfect
I should not have been decolourising you should not have been decolourising he should not have been decolourising we should not have been decolourising you should not have been decolourising they should not have been decolourising
Interrogative form
Simple form
should I decolourise? should you decolourise? should he decolourise? should we decolourise? should you decolourise? should they decolourise?
V-ing form
should I be decolourising? should you be decolourising? should he be decolourising? should we be decolourising? should you be decolourising? should they be decolourising?
Perfect
should I have decolourised? should you have decolourised? should he have decolourised? should we have decolourised? should you have decolourised? should they have decolourised?
V-ing perfect
should I have been decolourising? should you have been decolourising? should he have been decolourising? should we have been decolourising? should you have been decolourising? should they have been decolourising?
Interro-negative form
Simple form
should I not decolourise? should you not decolourise? should he not decolourise? should we not decolourise? should you not decolourise? should they not decolourise?
V-ing form
should I not be decolourising? should you not be decolourising? should he not be decolourising? should we not be decolourising? should you not be decolourising? should they not be decolourising?
Perfect
should I not have decolourised? should you not have decolourised? should he not have decolourised? should we not have decolourised? should you not have decolourised? should they not have decolourised?
V-ing perfect
should I not have been decolourising? should you not have been decolourising? should he not have been decolourising? should we not have been decolourising? should you not have been decolourising? should they not have been decolourising?