ought to pretest
Regular verb: pretest - pretested- pretested

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I ought to pretest
you ought to pretest
he ought to pretest
we ought to pretest
you ought to pretest
they ought to pretest 	I ought to be pretesting
you ought to be pretesting
he ought to be pretesting
we ought to be pretesting
you ought to be pretesting
they ought to be pretesting	I ought to have pretested
you ought to have pretested
he ought to have pretested
we ought to have pretested
you ought to have pretested
they ought to have pretested	I ought to have been pretesting
you ought to have been pretesting
he ought to have been pretesting
we ought to have been pretesting
you ought to have been pretesting
they ought to have been pretesting	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I oughtn't to pretest
you oughtn't to pretest
he oughtn't to pretest
we oughtn't to pretest
you oughtn't to pretest
they oughtn't to pretest 	I oughtn't to be pretesting
you oughtn't to be pretesting
he oughtn't to be pretesting
we oughtn't to be pretesting
you oughtn't to be pretesting
they oughtn't to be pretesting	I oughtn't to have pretested
you oughtn't to have pretested
he oughtn't to have pretested
we oughtn't to have pretested
you oughtn't to have pretested
they oughtn't to have pretested	I oughtn't to have been pretesting
you oughtn't to have been pretesting
he oughtn't to have been pretesting
we oughtn't to have been pretesting
you oughtn't to have been pretesting
they oughtn't to have been pretesting	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
ought to I pretest?
ought to you pretest?
ought to he pretest?
ought to we pretest?
ought to you pretest?
ought to they pretest? 	ought to I be pretesting?
ought to you be pretesting?
ought to he be pretesting?
ought to we be pretesting?
ought to you be pretesting?
ought to they be pretesting? 	ought to I have pretested?
ought to you have pretested?
ought to he have pretested?
ought to we have pretested?
ought to you have pretested?
ought to they have pretested? 	ought to I have been pretesting?
ought to you have been pretesting?
ought to he have been pretesting?
ought to we have been pretesting?
ought to you have been pretesting?
ought to they have been pretesting? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
oughtn't I to pretest?
oughtn't you to pretest?
oughtn't he to pretest?
oughtn't we to pretest?
oughtn't you to pretest?
oughtn't they to pretest? 	oughtn't I to be pretesting?
oughtn't you to be pretesting?
oughtn't he to be pretesting?
oughtn't we to be pretesting?
oughtn't you to be pretesting?
oughtn't they to be pretesting? 	oughtn't I to have pretested?
oughtn't you to have pretested?
oughtn't he to have pretested?
oughtn't we to have pretested?
oughtn't you to have pretested?
oughtn't they to have pretested? 	oughtn't I to have been pretesting?
oughtn't you to have been pretesting?
oughtn't he to have been pretesting?
oughtn't we to have been pretesting?
oughtn't you to have been pretesting?
oughtn't they to have been pretesting?