may retest
Regular verb: retest - retested- retested

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I may retest
you may retest
he may retest
we may retest
you may retest
they may retest 	I may be retesting
you may be retesting
he may be retesting
we may be retesting
you may be retesting
they may be retesting	I may have retested
you may have retested
he may have retested
we may have retested
you may have retested
they may have retested	I may have been retesting
you may have been retesting
he may have been retesting
we may have been retesting
you may have been retesting
they may have been retesting	

Negation 	
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I mayn't retest
you mayn't retest
he mayn't retest
we mayn't retest
you mayn't retest
they mayn't retest 	I mayn't be retesting
you mayn't be retesting
he mayn't be retesting
we mayn't be retesting
you mayn't be retesting
they mayn't be retesting	I mayn't have retested
you mayn't have retested
he mayn't have retested
we mayn't have retested
you mayn't have retested
they mayn't have retested	I mayn't have been retesting
you mayn't have been retesting
he mayn't have been retesting
we mayn't have been retesting
you mayn't have been retesting
they mayn't have been retesting	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
may I retest?
may you retest?
may he retest?
may we retest?
may you retest?
may they retest? 	may I be retesting?
may you be retesting?
may he be retesting?
may we be retesting?
may you be retesting?
may they be retesting? 	may I have retested?
may you have retested?
may he have retested?
may we have retested?
may you have retested?
may they have retested? 	may I have been retesting?
may you have been retesting?
may he have been retesting?
may we have been retesting?
may you have been retesting?
may they have been retesting? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
mayn't I retest?
mayn't you retest?
mayn't he retest?
mayn't we retest?
mayn't you retest?
mayn't they retest? 	mayn't I be retesting?
mayn't you be retesting?
mayn't he be retesting?
mayn't we be retesting?
mayn't you be retesting?
mayn't they be retesting? 	mayn't I have retested?
mayn't you have retested?
mayn't he have retested?
mayn't we have retested?
mayn't you have retested?
mayn't they have retested? 	mayn't I have been retesting?
mayn't you have been retesting?
mayn't he have been retesting?
mayn't we have been retesting?
mayn't you have been retesting?
mayn't they have been retesting?