ought to catalyse
Regular verb: catalyse - catalysed- catalysed

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I ought to catalyse
you ought to catalyse
she ought to catalyse
we ought to catalyse
you ought to catalyse
they ought to catalyse 	I ought to be catalysing
you ought to be catalysing
she ought to be catalysing
we ought to be catalysing
you ought to be catalysing
they ought to be catalysing	I ought to have catalysed
you ought to have catalysed
she ought to have catalysed
we ought to have catalysed
you ought to have catalysed
they ought to have catalysed	I ought to have been catalysing
you ought to have been catalysing
she ought to have been catalysing
we ought to have been catalysing
you ought to have been catalysing
they ought to have been catalysing	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I oughtn't to catalyse
you oughtn't to catalyse
she oughtn't to catalyse
we oughtn't to catalyse
you oughtn't to catalyse
they oughtn't to catalyse 	I oughtn't to be catalysing
you oughtn't to be catalysing
she oughtn't to be catalysing
we oughtn't to be catalysing
you oughtn't to be catalysing
they oughtn't to be catalysing	I oughtn't to have catalysed
you oughtn't to have catalysed
she oughtn't to have catalysed
we oughtn't to have catalysed
you oughtn't to have catalysed
they oughtn't to have catalysed	I oughtn't to have been catalysing
you oughtn't to have been catalysing
she oughtn't to have been catalysing
we oughtn't to have been catalysing
you oughtn't to have been catalysing
they oughtn't to have been catalysing	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
ought to I catalyse?
ought to you catalyse?
ought to she catalyse?
ought to we catalyse?
ought to you catalyse?
ought to they catalyse? 	ought to I be catalysing?
ought to you be catalysing?
ought to she be catalysing?
ought to we be catalysing?
ought to you be catalysing?
ought to they be catalysing? 	ought to I have catalysed?
ought to you have catalysed?
ought to she have catalysed?
ought to we have catalysed?
ought to you have catalysed?
ought to they have catalysed? 	ought to I have been catalysing?
ought to you have been catalysing?
ought to she have been catalysing?
ought to we have been catalysing?
ought to you have been catalysing?
ought to they have been catalysing? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
oughtn't I to catalyse?
oughtn't you to catalyse?
oughtn't she to catalyse?
oughtn't we to catalyse?
oughtn't you to catalyse?
oughtn't they to catalyse? 	oughtn't I to be catalysing?
oughtn't you to be catalysing?
oughtn't she to be catalysing?
oughtn't we to be catalysing?
oughtn't you to be catalysing?
oughtn't they to be catalysing? 	oughtn't I to have catalysed?
oughtn't you to have catalysed?
oughtn't she to have catalysed?
oughtn't we to have catalysed?
oughtn't you to have catalysed?
oughtn't they to have catalysed? 	oughtn't I to have been catalysing?
oughtn't you to have been catalysing?
oughtn't she to have been catalysing?
oughtn't we to have been catalysing?
oughtn't you to have been catalysing?
oughtn't they to have been catalysing?