may underpraise
Regular verb: underpraise - underpraised- underpraised

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I may underpraise
you may underpraise
he may underpraise
we may underpraise
you may underpraise
they may underpraise 	I may be underpraising
you may be underpraising
he may be underpraising
we may be underpraising
you may be underpraising
they may be underpraising	I may have underpraised
you may have underpraised
he may have underpraised
we may have underpraised
you may have underpraised
they may have underpraised	I may have been underpraising
you may have been underpraising
he may have been underpraising
we may have been underpraising
you may have been underpraising
they may have been underpraising	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I mayn't underpraise
you mayn't underpraise
he mayn't underpraise
we mayn't underpraise
you mayn't underpraise
they mayn't underpraise 	I mayn't be underpraising
you mayn't be underpraising
he mayn't be underpraising
we mayn't be underpraising
you mayn't be underpraising
they mayn't be underpraising	I mayn't have underpraised
you mayn't have underpraised
he mayn't have underpraised
we mayn't have underpraised
you mayn't have underpraised
they mayn't have underpraised	I mayn't have been underpraising
you mayn't have been underpraising
he mayn't have been underpraising
we mayn't have been underpraising
you mayn't have been underpraising
they mayn't have been underpraising	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
may I underpraise?
may you underpraise?
may he underpraise?
may we underpraise?
may you underpraise?
may they underpraise? 	may I be underpraising?
may you be underpraising?
may he be underpraising?
may we be underpraising?
may you be underpraising?
may they be underpraising? 	may I have underpraised?
may you have underpraised?
may he have underpraised?
may we have underpraised?
may you have underpraised?
may they have underpraised? 	may I have been underpraising?
may you have been underpraising?
may he have been underpraising?
may we have been underpraising?
may you have been underpraising?
may they have been underpraising? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
mayn't I underpraise?
mayn't you underpraise?
mayn't he underpraise?
mayn't we underpraise?
mayn't you underpraise?
mayn't they underpraise? 	mayn't I be underpraising?
mayn't you be underpraising?
mayn't he be underpraising?
mayn't we be underpraising?
mayn't you be underpraising?
mayn't they be underpraising? 	mayn't I have underpraised?
mayn't you have underpraised?
mayn't he have underpraised?
mayn't we have underpraised?
mayn't you have underpraised?
mayn't they have underpraised? 	mayn't I have been underpraising?
mayn't you have been underpraising?
mayn't he have been underpraising?
mayn't we have been underpraising?
mayn't you have been underpraising?
mayn't they have been underpraising?