English verb conjugation
MAY CRYSTALLISE

Regular verb: crystallise - crystallised - crystallised

Affirmation

Simple form	V-ing form
I may crystallise you may crystallise he may crystallise we may crystallise you may crystallise they may crystallise	I may be crystallising you may be crystallising he may be crystallising we may be crystallising you may be crystallising they may be crystallising
Perfect	V-ing perfect
I may have crystallised you may have crystallised he may have crystallised we may have crystallised you may have crystallised they may have crystallised	I may have been crystallising you may have been crystallising he may have been crystallising we may have been crystallising you may have been crystallising they may have been crystallising

Negation

Simple form	V-ing form
I may not crystallise you may not crystallise he may not crystallise we may not crystallise you may not crystallise they may not crystallise	I may not be crystallising you may not be crystallising he may not be crystallising we may not be crystallising you may not be crystallising they may not be crystallising
Perfect	V-ing perfect
I may not have crystallised you may not have crystallised he may not have crystallised we may not have crystallised you may not have crystallised they may not have crystallised	I may not have been crystallising you may not have been crystallising he may not have been crystallising we may not have been crystallising you may not have been crystallising they may not have been crystallising

Interrogative form

Simple form	V-ing form
may I crystallise? may you crystallise? may he crystallise? may we crystallise? may you crystallise? may they crystallise?	may I be crystallising? may you be crystallising? may he be crystallising? may we be crystallising? may you be crystallising? may they be crystallising?
Perfect	V-ing perfect
may I have crystallised? may you have crystallised? may he have crystallised? may we have crystallised? may you have crystallised? may they have crystallised?	may I have been crystallising? may you have been crystallising? may he have been crystallising? may we have been crystallising? may you have been crystallising? may they have been crystallising?

Interro-negative form

Simple form	V-ing form
may I not crystallise? may you not crystallise? may he not crystallise? may we not crystallise? may you not crystallise? may they not crystallise?	may I not be crystallising? may you not be crystallising? may he not be crystallising? may we not be crystallising? may you not be crystallising? may they not be crystallising?
Perfect	V-ing perfect
may I not have crystallised? may you not have crystallised? may he not have crystallised? may we not have crystallised? may you not have crystallised? may they not have crystallised?	may I not have been crystallising? may you not have been crystallising? may he not have been crystallising? may we not have been crystallising? may you not have been crystallising? may they not have been crystallising?