may grieve
Regular verb: grieve - grieved- grieved

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I may grieve
you may grieve
she may grieve
we may grieve
you may grieve
they may grieve 	I may be grieving
you may be grieving
she may be grieving
we may be grieving
you may be grieving
they may be grieving	I may have grieved
you may have grieved
she may have grieved
we may have grieved
you may have grieved
they may have grieved	I may have been grieving
you may have been grieving
she may have been grieving
we may have been grieving
you may have been grieving
they may have been grieving	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I mayn't grieve
you mayn't grieve
she mayn't grieve
we mayn't grieve
you mayn't grieve
they mayn't grieve 	I mayn't be grieving
you mayn't be grieving
she mayn't be grieving
we mayn't be grieving
you mayn't be grieving
they mayn't be grieving	I mayn't have grieved
you mayn't have grieved
she mayn't have grieved
we mayn't have grieved
you mayn't have grieved
they mayn't have grieved	I mayn't have been grieving
you mayn't have been grieving
she mayn't have been grieving
we mayn't have been grieving
you mayn't have been grieving
they mayn't have been grieving	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
may I grieve?
may you grieve?
may she grieve?
may we grieve?
may you grieve?
may they grieve? 	may I be grieving?
may you be grieving?
may she be grieving?
may we be grieving?
may you be grieving?
may they be grieving? 	may I have grieved?
may you have grieved?
may she have grieved?
may we have grieved?
may you have grieved?
may they have grieved? 	may I have been grieving?
may you have been grieving?
may she have been grieving?
may we have been grieving?
may you have been grieving?
may they have been grieving? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
mayn't I grieve?
mayn't you grieve?
mayn't she grieve?
mayn't we grieve?
mayn't you grieve?
mayn't they grieve? 	mayn't I be grieving?
mayn't you be grieving?
mayn't she be grieving?
mayn't we be grieving?
mayn't you be grieving?
mayn't they be grieving? 	mayn't I have grieved?
mayn't you have grieved?
mayn't she have grieved?
mayn't we have grieved?
mayn't you have grieved?
mayn't they have grieved? 	mayn't I have been grieving?
mayn't you have been grieving?
mayn't she have been grieving?
mayn't we have been grieving?
mayn't you have been grieving?
mayn't they have been grieving?