I may quintuple you may quintuple he may quintuple we may quintuple you may quintuple they may quintuple
V-ing form
I may be quintupling you may be quintupling he may be quintupling we may be quintupling you may be quintupling they may be quintupling
Perfect
I may have quintupled you may have quintupled he may have quintupled we may have quintupled you may have quintupled they may have quintupled
V-ing perfect
I may have been quintupling you may have been quintupling he may have been quintupling we may have been quintupling you may have been quintupling they may have been quintupling
Negation
Simple form
I mayn't quintuple you mayn't quintuple he mayn't quintuple we mayn't quintuple you mayn't quintuple they mayn't quintuple
V-ing form
I mayn't be quintupling you mayn't be quintupling he mayn't be quintupling we mayn't be quintupling you mayn't be quintupling they mayn't be quintupling
Perfect
I mayn't have quintupled you mayn't have quintupled he mayn't have quintupled we mayn't have quintupled you mayn't have quintupled they mayn't have quintupled
V-ing perfect
I mayn't have been quintupling you mayn't have been quintupling he mayn't have been quintupling we mayn't have been quintupling you mayn't have been quintupling they mayn't have been quintupling
Interrogative form
Simple form
may I quintuple? may you quintuple? may he quintuple? may we quintuple? may you quintuple? may they quintuple?
V-ing form
may I be quintupling? may you be quintupling? may he be quintupling? may we be quintupling? may you be quintupling? may they be quintupling?
Perfect
may I have quintupled? may you have quintupled? may he have quintupled? may we have quintupled? may you have quintupled? may they have quintupled?
V-ing perfect
may I have been quintupling? may you have been quintupling? may he have been quintupling? may we have been quintupling? may you have been quintupling? may they have been quintupling?
Interro-negative form
Simple form
mayn't I quintuple? mayn't you quintuple? mayn't he quintuple? mayn't we quintuple? mayn't you quintuple? mayn't they quintuple?
V-ing form
mayn't I be quintupling? mayn't you be quintupling? mayn't he be quintupling? mayn't we be quintupling? mayn't you be quintupling? mayn't they be quintupling?
Perfect
mayn't I have quintupled? mayn't you have quintupled? mayn't he have quintupled? mayn't we have quintupled? mayn't you have quintupled? mayn't they have quintupled?
V-ing perfect
mayn't I have been quintupling? mayn't you have been quintupling? mayn't he have been quintupling? mayn't we have been quintupling? mayn't you have been quintupling? mayn't they have been quintupling?