may preinvestigate preinvestigate
Regular verb: preinvestigate preinvestigate - preinvestigate preinvestigated- preinvestigate preinvestigated

, this verb may not exist. Conjugation is given as example.

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I may preinvestigate preinvestigate
you may preinvestigate preinvestigate
he may preinvestigate preinvestigate
we may preinvestigate preinvestigate
you may preinvestigate preinvestigate
they may preinvestigate preinvestigate 	I may be preinvestigate preinvestigating
you may be preinvestigate preinvestigating
he may be preinvestigate preinvestigating
we may be preinvestigate preinvestigating
you may be preinvestigate preinvestigating
they may be preinvestigate preinvestigating	I may have preinvestigate preinvestigated
you may have preinvestigate preinvestigated
he may have preinvestigate preinvestigated
we may have preinvestigate preinvestigated
you may have preinvestigate preinvestigated
they may have preinvestigate preinvestigated	I may have been preinvestigate preinvestigating
you may have been preinvestigate preinvestigating
he may have been preinvestigate preinvestigating
we may have been preinvestigate preinvestigating
you may have been preinvestigate preinvestigating
they may have been preinvestigate preinvestigating	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I mayn't preinvestigate preinvestigate
you mayn't preinvestigate preinvestigate
he mayn't preinvestigate preinvestigate
we mayn't preinvestigate preinvestigate
you mayn't preinvestigate preinvestigate
they mayn't preinvestigate preinvestigate 	I mayn't be preinvestigate preinvestigating
you mayn't be preinvestigate preinvestigating
he mayn't be preinvestigate preinvestigating
we mayn't be preinvestigate preinvestigating
you mayn't be preinvestigate preinvestigating
they mayn't be preinvestigate preinvestigating	I mayn't have preinvestigate preinvestigated
you mayn't have preinvestigate preinvestigated
he mayn't have preinvestigate preinvestigated
we mayn't have preinvestigate preinvestigated
you mayn't have preinvestigate preinvestigated
they mayn't have preinvestigate preinvestigated	I mayn't have been preinvestigate preinvestigating
you mayn't have been preinvestigate preinvestigating
he mayn't have been preinvestigate preinvestigating
we mayn't have been preinvestigate preinvestigating
you mayn't have been preinvestigate preinvestigating
they mayn't have been preinvestigate preinvestigating	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
may I preinvestigate preinvestigate?
may you preinvestigate preinvestigate?
may he preinvestigate preinvestigate?
may we preinvestigate preinvestigate?
may you preinvestigate preinvestigate?
may they preinvestigate preinvestigate? 	may I be preinvestigate preinvestigating?
may you be preinvestigate preinvestigating?
may he be preinvestigate preinvestigating?
may we be preinvestigate preinvestigating?
may you be preinvestigate preinvestigating?
may they be preinvestigate preinvestigating? 	may I have preinvestigate preinvestigated?
may you have preinvestigate preinvestigated?
may he have preinvestigate preinvestigated?
may we have preinvestigate preinvestigated?
may you have preinvestigate preinvestigated?
may they have preinvestigate preinvestigated? 	may I have been preinvestigate preinvestigating?
may you have been preinvestigate preinvestigating?
may he have been preinvestigate preinvestigating?
may we have been preinvestigate preinvestigating?
may you have been preinvestigate preinvestigating?
may they have been preinvestigate preinvestigating? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
mayn't I preinvestigate preinvestigate?
mayn't you preinvestigate preinvestigate?
mayn't he preinvestigate preinvestigate?
mayn't we preinvestigate preinvestigate?
mayn't you preinvestigate preinvestigate?
mayn't they preinvestigate preinvestigate? 	mayn't I be preinvestigate preinvestigating?
mayn't you be preinvestigate preinvestigating?
mayn't he be preinvestigate preinvestigating?
mayn't we be preinvestigate preinvestigating?
mayn't you be preinvestigate preinvestigating?
mayn't they be preinvestigate preinvestigating? 	mayn't I have preinvestigate preinvestigated?
mayn't you have preinvestigate preinvestigated?
mayn't he have preinvestigate preinvestigated?
mayn't we have preinvestigate preinvestigated?
mayn't you have preinvestigate preinvestigated?
mayn't they have preinvestigate preinvestigated? 	mayn't I have been preinvestigate preinvestigating?
mayn't you have been preinvestigate preinvestigating?
mayn't he have been preinvestigate preinvestigating?
mayn't we have been preinvestigate preinvestigating?
mayn't you have been preinvestigate preinvestigating?
mayn't they have been preinvestigate preinvestigating?