ought to devocalise
Regular verb: devocalise - devocalised- devocalised

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I ought to devocalise
you ought to devocalise
she ought to devocalise
we ought to devocalise
you ought to devocalise
they ought to devocalise 	I ought to be devocalising
you ought to be devocalising
she ought to be devocalising
we ought to be devocalising
you ought to be devocalising
they ought to be devocalising	I ought to have devocalised
you ought to have devocalised
she ought to have devocalised
we ought to have devocalised
you ought to have devocalised
they ought to have devocalised	I ought to have been devocalising
you ought to have been devocalising
she ought to have been devocalising
we ought to have been devocalising
you ought to have been devocalising
they ought to have been devocalising	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I oughtn't to devocalise
you oughtn't to devocalise
she oughtn't to devocalise
we oughtn't to devocalise
you oughtn't to devocalise
they oughtn't to devocalise 	I oughtn't to be devocalising
you oughtn't to be devocalising
she oughtn't to be devocalising
we oughtn't to be devocalising
you oughtn't to be devocalising
they oughtn't to be devocalising	I oughtn't to have devocalised
you oughtn't to have devocalised
she oughtn't to have devocalised
we oughtn't to have devocalised
you oughtn't to have devocalised
they oughtn't to have devocalised	I oughtn't to have been devocalising
you oughtn't to have been devocalising
she oughtn't to have been devocalising
we oughtn't to have been devocalising
you oughtn't to have been devocalising
they oughtn't to have been devocalising	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
ought to I devocalise?
ought to you devocalise?
ought to she devocalise?
ought to we devocalise?
ought to you devocalise?
ought to they devocalise? 	ought to I be devocalising?
ought to you be devocalising?
ought to she be devocalising?
ought to we be devocalising?
ought to you be devocalising?
ought to they be devocalising? 	ought to I have devocalised?
ought to you have devocalised?
ought to she have devocalised?
ought to we have devocalised?
ought to you have devocalised?
ought to they have devocalised? 	ought to I have been devocalising?
ought to you have been devocalising?
ought to she have been devocalising?
ought to we have been devocalising?
ought to you have been devocalising?
ought to they have been devocalising? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
oughtn't I to devocalise?
oughtn't you to devocalise?
oughtn't she to devocalise?
oughtn't we to devocalise?
oughtn't you to devocalise?
oughtn't they to devocalise? 	oughtn't I to be devocalising?
oughtn't you to be devocalising?
oughtn't she to be devocalising?
oughtn't we to be devocalising?
oughtn't you to be devocalising?
oughtn't they to be devocalising? 	oughtn't I to have devocalised?
oughtn't you to have devocalised?
oughtn't she to have devocalised?
oughtn't we to have devocalised?
oughtn't you to have devocalised?
oughtn't they to have devocalised? 	oughtn't I to have been devocalising?
oughtn't you to have been devocalising?
oughtn't she to have been devocalising?
oughtn't we to have been devocalising?
oughtn't you to have been devocalising?
oughtn't they to have been devocalising?