English verb conjugation
MAY VOUCH

Regular verb: vouch - vouched - vouched

Affirmation

Simple form	V-ing form
I may vouch you may vouch she may vouch we may vouch you may vouch they may vouch	I may be vouching you may be vouching she may be vouching we may be vouching you may be vouching they may be vouching
Perfect	V-ing perfect
I may have vouched you may have vouched she may have vouched we may have vouched you may have vouched they may have vouched	I may have been vouching you may have been vouching she may have been vouching we may have been vouching you may have been vouching they may have been vouching

Negation

Simple form	V-ing form
I mayn't vouch you mayn't vouch she mayn't vouch we mayn't vouch you mayn't vouch they mayn't vouch	I mayn't be vouching you mayn't be vouching she mayn't be vouching we mayn't be vouching you mayn't be vouching they mayn't be vouching
Perfect	V-ing perfect
I mayn't have vouched you mayn't have vouched she mayn't have vouched we mayn't have vouched you mayn't have vouched they mayn't have vouched	I mayn't have been vouching you mayn't have been vouching she mayn't have been vouching we mayn't have been vouching you mayn't have been vouching they mayn't have been vouching

Interrogative form

Simple form	V-ing form
may I vouch? may you vouch? may she vouch? may we vouch? may you vouch? may they vouch?	may I be vouching? may you be vouching? may she be vouching? may we be vouching? may you be vouching? may they be vouching?
Perfect	V-ing perfect
may I have vouched? may you have vouched? may she have vouched? may we have vouched? may you have vouched? may they have vouched?	may I have been vouching? may you have been vouching? may she have been vouching? may we have been vouching? may you have been vouching? may they have been vouching?

Interro-negative form

Simple form	V-ing form
mayn't I vouch? mayn't you vouch? mayn't she vouch? mayn't we vouch? mayn't you vouch? mayn't they vouch?	mayn't I be vouching? mayn't you be vouching? mayn't she be vouching? mayn't we be vouching? mayn't you be vouching? mayn't they be vouching?
Perfect	V-ing perfect
mayn't I have vouched? mayn't you have vouched? mayn't she have vouched? mayn't we have vouched? mayn't you have vouched? mayn't they have vouched?	mayn't I have been vouching? mayn't you have been vouching? mayn't she have been vouching? mayn't we have been vouching? mayn't you have been vouching? mayn't they have been vouching?