may cascade
Regular verb: cascade - cascaded- cascaded

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I may cascade
you may cascade
he may cascade
we may cascade
you may cascade
they may cascade 	I may be cascading
you may be cascading
he may be cascading
we may be cascading
you may be cascading
they may be cascading	I may have cascaded
you may have cascaded
he may have cascaded
we may have cascaded
you may have cascaded
they may have cascaded	I may have been cascading
you may have been cascading
he may have been cascading
we may have been cascading
you may have been cascading
they may have been cascading	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I mayn't cascade
you mayn't cascade
he mayn't cascade
we mayn't cascade
you mayn't cascade
they mayn't cascade 	I mayn't be cascading
you mayn't be cascading
he mayn't be cascading
we mayn't be cascading
you mayn't be cascading
they mayn't be cascading	I mayn't have cascaded
you mayn't have cascaded
he mayn't have cascaded
we mayn't have cascaded
you mayn't have cascaded
they mayn't have cascaded	I mayn't have been cascading
you mayn't have been cascading
he mayn't have been cascading
we mayn't have been cascading
you mayn't have been cascading
they mayn't have been cascading	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
may I cascade?
may you cascade?
may he cascade?
may we cascade?
may you cascade?
may they cascade? 	may I be cascading?
may you be cascading?
may he be cascading?
may we be cascading?
may you be cascading?
may they be cascading? 	may I have cascaded?
may you have cascaded?
may he have cascaded?
may we have cascaded?
may you have cascaded?
may they have cascaded? 	may I have been cascading?
may you have been cascading?
may he have been cascading?
may we have been cascading?
may you have been cascading?
may they have been cascading? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
mayn't I cascade?
mayn't you cascade?
mayn't he cascade?
mayn't we cascade?
mayn't you cascade?
mayn't they cascade? 	mayn't I be cascading?
mayn't you be cascading?
mayn't he be cascading?
mayn't we be cascading?
mayn't you be cascading?
mayn't they be cascading? 	mayn't I have cascaded?
mayn't you have cascaded?
mayn't he have cascaded?
mayn't we have cascaded?
mayn't you have cascaded?
mayn't they have cascaded? 	mayn't I have been cascading?
mayn't you have been cascading?
mayn't he have been cascading?
mayn't we have been cascading?
mayn't you have been cascading?
mayn't they have been cascading?