may cross-fertilize
Regular verb: cross-fertilize - cross-fertilized- cross-fertilized

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I may cross-fertilize
you may cross-fertilize
he may cross-fertilize
we may cross-fertilize
you may cross-fertilize
they may cross-fertilize 	I may be cross-fertilizing
you may be cross-fertilizing
he may be cross-fertilizing
we may be cross-fertilizing
you may be cross-fertilizing
they may be cross-fertilizing	I may have cross-fertilized
you may have cross-fertilized
he may have cross-fertilized
we may have cross-fertilized
you may have cross-fertilized
they may have cross-fertilized	I may have been cross-fertilizing
you may have been cross-fertilizing
he may have been cross-fertilizing
we may have been cross-fertilizing
you may have been cross-fertilizing
they may have been cross-fertilizing	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I mayn't cross-fertilize
you mayn't cross-fertilize
he mayn't cross-fertilize
we mayn't cross-fertilize
you mayn't cross-fertilize
they mayn't cross-fertilize 	I mayn't be cross-fertilizing
you mayn't be cross-fertilizing
he mayn't be cross-fertilizing
we mayn't be cross-fertilizing
you mayn't be cross-fertilizing
they mayn't be cross-fertilizing	I mayn't have cross-fertilized
you mayn't have cross-fertilized
he mayn't have cross-fertilized
we mayn't have cross-fertilized
you mayn't have cross-fertilized
they mayn't have cross-fertilized	I mayn't have been cross-fertilizing
you mayn't have been cross-fertilizing
he mayn't have been cross-fertilizing
we mayn't have been cross-fertilizing
you mayn't have been cross-fertilizing
they mayn't have been cross-fertilizing	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
may I cross-fertilize?
may you cross-fertilize?
may he cross-fertilize?
may we cross-fertilize?
may you cross-fertilize?
may they cross-fertilize? 	may I be cross-fertilizing?
may you be cross-fertilizing?
may he be cross-fertilizing?
may we be cross-fertilizing?
may you be cross-fertilizing?
may they be cross-fertilizing? 	may I have cross-fertilized?
may you have cross-fertilized?
may he have cross-fertilized?
may we have cross-fertilized?
may you have cross-fertilized?
may they have cross-fertilized? 	may I have been cross-fertilizing?
may you have been cross-fertilizing?
may he have been cross-fertilizing?
may we have been cross-fertilizing?
may you have been cross-fertilizing?
may they have been cross-fertilizing? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
mayn't I cross-fertilize?
mayn't you cross-fertilize?
mayn't he cross-fertilize?
mayn't we cross-fertilize?
mayn't you cross-fertilize?
mayn't they cross-fertilize? 	mayn't I be cross-fertilizing?
mayn't you be cross-fertilizing?
mayn't he be cross-fertilizing?
mayn't we be cross-fertilizing?
mayn't you be cross-fertilizing?
mayn't they be cross-fertilizing? 	mayn't I have cross-fertilized?
mayn't you have cross-fertilized?
mayn't he have cross-fertilized?
mayn't we have cross-fertilized?
mayn't you have cross-fertilized?
mayn't they have cross-fertilized? 	mayn't I have been cross-fertilizing?
mayn't you have been cross-fertilizing?
mayn't he have been cross-fertilizing?
mayn't we have been cross-fertilizing?
mayn't you have been cross-fertilizing?
mayn't they have been cross-fertilizing?