English verb conjugation
CAN CRYSTALLISE

Regular verb: crystallise - crystallised - crystallised

Affirmation

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

Negation

Simple form	V-ing form
I can't crystallise you can't crystallise he can't crystallise we can't crystallise you can't crystallise they can't crystallise	I can't be crystallising you can't be crystallising he can't be crystallising we can't be crystallising you can't be crystallising they can't be crystallising
Perfect	V-ing perfect
I can't have crystallised you can't have crystallised he can't have crystallised we can't have crystallised you can't have crystallised they can't have crystallised	I can't have been crystallising you can't have been crystallising he can't have been crystallising we can't have been crystallising you can't have been crystallising they can't have been crystallising

Interrogative form

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

Interro-negative form

Simple form	V-ing form
can't I crystallise? can't you crystallise? can't he crystallise? can't we crystallise? can't you crystallise? can't they crystallise?	can't I be crystallising? can't you be crystallising? can't he be crystallising? can't we be crystallising? can't you be crystallising? can't they be crystallising?
Perfect	V-ing perfect
can't I have crystallised? can't you have crystallised? can't he have crystallised? can't we have crystallised? can't you have crystallised? can't they have crystallised?	can't I have been crystallising? can't you have been crystallising? can't he have been crystallising? can't we have been crystallising? can't you have been crystallising? can't they have been crystallising?