may externalise
Regular verb: externalise - externalised- externalised

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I may externalise
you may externalise
she may externalise
we may externalise
you may externalise
they may externalise 	I may be externalising
you may be externalising
she may be externalising
we may be externalising
you may be externalising
they may be externalising	I may have externalised
you may have externalised
she may have externalised
we may have externalised
you may have externalised
they may have externalised	I may have been externalising
you may have been externalising
she may have been externalising
we may have been externalising
you may have been externalising
they may have been externalising	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I mayn't externalise
you mayn't externalise
she mayn't externalise
we mayn't externalise
you mayn't externalise
they mayn't externalise 	I mayn't be externalising
you mayn't be externalising
she mayn't be externalising
we mayn't be externalising
you mayn't be externalising
they mayn't be externalising	I mayn't have externalised
you mayn't have externalised
she mayn't have externalised
we mayn't have externalised
you mayn't have externalised
they mayn't have externalised	I mayn't have been externalising
you mayn't have been externalising
she mayn't have been externalising
we mayn't have been externalising
you mayn't have been externalising
they mayn't have been externalising	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
may I externalise?
may you externalise?
may she externalise?
may we externalise?
may you externalise?
may they externalise? 	may I be externalising?
may you be externalising?
may she be externalising?
may we be externalising?
may you be externalising?
may they be externalising? 	may I have externalised?
may you have externalised?
may she have externalised?
may we have externalised?
may you have externalised?
may they have externalised? 	may I have been externalising?
may you have been externalising?
may she have been externalising?
may we have been externalising?
may you have been externalising?
may they have been externalising? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
mayn't I externalise?
mayn't you externalise?
mayn't she externalise?
mayn't we externalise?
mayn't you externalise?
mayn't they externalise? 	mayn't I be externalising?
mayn't you be externalising?
mayn't she be externalising?
mayn't we be externalising?
mayn't you be externalising?
mayn't they be externalising? 	mayn't I have externalised?
mayn't you have externalised?
mayn't she have externalised?
mayn't we have externalised?
mayn't you have externalised?
mayn't they have externalised? 	mayn't I have been externalising?
mayn't you have been externalising?
mayn't she have been externalising?
mayn't we have been externalising?
mayn't you have been externalising?
mayn't they have been externalising?