may destabilise
Regular verb: destabilise - destabilised- destabilised

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I may destabilise
you may destabilise
he may destabilise
we may destabilise
you may destabilise
they may destabilise 	I may be destabilising
you may be destabilising
he may be destabilising
we may be destabilising
you may be destabilising
they may be destabilising	I may have destabilised
you may have destabilised
he may have destabilised
we may have destabilised
you may have destabilised
they may have destabilised	I may have been destabilising
you may have been destabilising
he may have been destabilising
we may have been destabilising
you may have been destabilising
they may have been destabilising	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I mayn't destabilise
you mayn't destabilise
he mayn't destabilise
we mayn't destabilise
you mayn't destabilise
they mayn't destabilise 	I mayn't be destabilising
you mayn't be destabilising
he mayn't be destabilising
we mayn't be destabilising
you mayn't be destabilising
they mayn't be destabilising	I mayn't have destabilised
you mayn't have destabilised
he mayn't have destabilised
we mayn't have destabilised
you mayn't have destabilised
they mayn't have destabilised	I mayn't have been destabilising
you mayn't have been destabilising
he mayn't have been destabilising
we mayn't have been destabilising
you mayn't have been destabilising
they mayn't have been destabilising	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
may I destabilise?
may you destabilise?
may he destabilise?
may we destabilise?
may you destabilise?
may they destabilise? 	may I be destabilising?
may you be destabilising?
may he be destabilising?
may we be destabilising?
may you be destabilising?
may they be destabilising? 	may I have destabilised?
may you have destabilised?
may he have destabilised?
may we have destabilised?
may you have destabilised?
may they have destabilised? 	may I have been destabilising?
may you have been destabilising?
may he have been destabilising?
may we have been destabilising?
may you have been destabilising?
may they have been destabilising? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
mayn't I destabilise?
mayn't you destabilise?
mayn't he destabilise?
mayn't we destabilise?
mayn't you destabilise?
mayn't they destabilise? 	mayn't I be destabilising?
mayn't you be destabilising?
mayn't he be destabilising?
mayn't we be destabilising?
mayn't you be destabilising?
mayn't they be destabilising? 	mayn't I have destabilised?
mayn't you have destabilised?
mayn't he have destabilised?
mayn't we have destabilised?
mayn't you have destabilised?
mayn't they have destabilised? 	mayn't I have been destabilising?
mayn't you have been destabilising?
mayn't he have been destabilising?
mayn't we have been destabilising?
mayn't you have been destabilising?
mayn't they have been destabilising?