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