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V-ing form
I may be discovering you may be discovering she may be discovering we may be discovering you may be discovering they may be discovering
Perfect
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V-ing perfect
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Negation
Simple form
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V-ing form
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Perfect
I mayn't have discovered you mayn't have discovered she mayn't have discovered we mayn't have discovered you mayn't have discovered they mayn't have discovered
V-ing perfect
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Interrogative form
Simple form
may I discover? may you discover? may she discover? may we discover? may you discover? may they discover?
V-ing form
may I be discovering? may you be discovering? may she be discovering? may we be discovering? may you be discovering? may they be discovering?
Perfect
may I have discovered? may you have discovered? may she have discovered? may we have discovered? may you have discovered? may they have discovered?
V-ing perfect
may I have been discovering? may you have been discovering? may she have been discovering? may we have been discovering? may you have been discovering? may they have been discovering?
Interro-negative form
Simple form
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V-ing form
mayn't I be discovering? mayn't you be discovering? mayn't she be discovering? mayn't we be discovering? mayn't you be discovering? mayn't they be discovering?
Perfect
mayn't I have discovered? mayn't you have discovered? mayn't she have discovered? mayn't we have discovered? mayn't you have discovered? mayn't they have discovered?
V-ing perfect
mayn't I have been discovering? mayn't you have been discovering? mayn't she have been discovering? mayn't we have been discovering? mayn't you have been discovering? mayn't they have been discovering?