may assess
Regular verb: assess - assessed- assessed

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I may assess
you may assess
he may assess
we may assess
you may assess
they may assess 	I may be assessing
you may be assessing
he may be assessing
we may be assessing
you may be assessing
they may be assessing	I may have assessed
you may have assessed
he may have assessed
we may have assessed
you may have assessed
they may have assessed	I may have been assessing
you may have been assessing
he may have been assessing
we may have been assessing
you may have been assessing
they may have been assessing	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I mayn't assess
you mayn't assess
he mayn't assess
we mayn't assess
you mayn't assess
they mayn't assess 	I mayn't be assessing
you mayn't be assessing
he mayn't be assessing
we mayn't be assessing
you mayn't be assessing
they mayn't be assessing	I mayn't have assessed
you mayn't have assessed
he mayn't have assessed
we mayn't have assessed
you mayn't have assessed
they mayn't have assessed	I mayn't have been assessing
you mayn't have been assessing
he mayn't have been assessing
we mayn't have been assessing
you mayn't have been assessing
they mayn't have been assessing	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
may I assess?
may you assess?
may he assess?
may we assess?
may you assess?
may they assess? 	may I be assessing?
may you be assessing?
may he be assessing?
may we be assessing?
may you be assessing?
may they be assessing? 	may I have assessed?
may you have assessed?
may he have assessed?
may we have assessed?
may you have assessed?
may they have assessed? 	may I have been assessing?
may you have been assessing?
may he have been assessing?
may we have been assessing?
may you have been assessing?
may they have been assessing? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
mayn't I assess?
mayn't you assess?
mayn't he assess?
mayn't we assess?
mayn't you assess?
mayn't they assess? 	mayn't I be assessing?
mayn't you be assessing?
mayn't he be assessing?
mayn't we be assessing?
mayn't you be assessing?
mayn't they be assessing? 	mayn't I have assessed?
mayn't you have assessed?
mayn't he have assessed?
mayn't we have assessed?
mayn't you have assessed?
mayn't they have assessed? 	mayn't I have been assessing?
mayn't you have been assessing?
mayn't he have been assessing?
mayn't we have been assessing?
mayn't you have been assessing?
mayn't they have been assessing?