English verb conjugation
OUGHT TO CRYSTALLISE

Regular verb: crystallise - crystallised - crystallised

Affirmation

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

Negation

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

Interrogative form

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

Interro-negative form

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