ought to destabilise
Regular verb: destabilise - destabilised- destabilised

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I ought to destabilise
you ought to destabilise
she ought to destabilise
we ought to destabilise
you ought to destabilise
they ought to destabilise 	I ought to be destabilising
you ought to be destabilising
she ought to be destabilising
we ought to be destabilising
you ought to be destabilising
they ought to be destabilising	I ought to have destabilised
you ought to have destabilised
she ought to have destabilised
we ought to have destabilised
you ought to have destabilised
they ought to have destabilised	I ought to have been destabilising
you ought to have been destabilising
she ought to have been destabilising
we ought to have been destabilising
you ought to have been destabilising
they ought to have been destabilising	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I ought not to destabilise
you ought not to destabilise
she ought not to destabilise
we ought not to destabilise
you ought not to destabilise
they ought not to destabilise 	I ought not to destabilising
you ought not to destabilising
she ought not to destabilising
we ought not to destabilising
you ought not to destabilising
they ought not to destabilising	I ought not to have destabilised
you ought not to have destabilised
she ought not to have destabilised
we ought not to have destabilised
you ought not to have destabilised
they ought not to have destabilised	I ought not to have been destabilising
you ought not to have been destabilising
she ought not to have been destabilising
we ought not to have been destabilising
you ought not to have been destabilising
they ought not to have been destabilising	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
ought to I destabilise?
ought to you destabilise?
ought to she destabilise?
ought to we destabilise?
ought to you destabilise?
ought to they destabilise? 	ought to I be destabilising?
ought to you be destabilising?
ought to she be destabilising?
ought to we be destabilising?
ought to you be destabilising?
ought to they be destabilising? 	ought to I have destabilised?
ought to you have destabilised?
ought to she have destabilised?
ought to we have destabilised?
ought to you have destabilised?
ought to they have destabilised? 	ought to I have been destabilising?
ought to you have been destabilising?
ought to she have been destabilising?
ought to we have been destabilising?
ought to you have been destabilising?
ought to they have been destabilising? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
ought I not to destabilise?
ought you not to destabilise?
ought she not to destabilise?
ought we not to destabilise?
ought you not to destabilise?
ought they not to destabilise? 	ought I not to be destabilising?
ought you not to be destabilising?
ought she not to be destabilising?
ought we not to be destabilising?
ought you not to be destabilising?
ought they not to be destabilising? 	ought I not to have destabilised?
ought you not to have destabilised?
ought she not to have destabilised?
ought we not to have destabilised?
ought you not to have destabilised?
ought they not to have destabilised? 	ought I not to have been destabilising?
ought you not to have been destabilising?
ought she not to have been destabilising?
ought we not to have been destabilising?
ought you not to have been destabilising?
ought they not to have been destabilising?