English verb conjugation
MAY TRAIN

Regular verb: train - trained - trained

Affirmation

Simple form	V-ing form
I may train you may train he may train we may train you may train they may train	I may be training you may be training he may be training we may be training you may be training they may be training
Perfect	V-ing perfect
I may have trained you may have trained he may have trained we may have trained you may have trained they may have trained	I may have been training you may have been training he may have been training we may have been training you may have been training they may have been training

Negation

Simple form	V-ing form
I mayn't train you mayn't train he mayn't train we mayn't train you mayn't train they mayn't train	I mayn't be training you mayn't be training he mayn't be training we mayn't be training you mayn't be training they mayn't be training
Perfect	V-ing perfect
I mayn't have trained you mayn't have trained he mayn't have trained we mayn't have trained you mayn't have trained they mayn't have trained	I mayn't have been training you mayn't have been training he mayn't have been training we mayn't have been training you mayn't have been training they mayn't have been training

Interrogative form

Simple form	V-ing form
may I train? may you train? may he train? may we train? may you train? may they train?	may I be training? may you be training? may he be training? may we be training? may you be training? may they be training?
Perfect	V-ing perfect
may I have trained? may you have trained? may he have trained? may we have trained? may you have trained? may they have trained?	may I have been training? may you have been training? may he have been training? may we have been training? may you have been training? may they have been training?

Interro-negative form

Simple form	V-ing form
mayn't I train? mayn't you train? mayn't he train? mayn't we train? mayn't you train? mayn't they train?	mayn't I be training? mayn't you be training? mayn't he be training? mayn't we be training? mayn't you be training? mayn't they be training?
Perfect	V-ing perfect
mayn't I have trained? mayn't you have trained? mayn't he have trained? mayn't we have trained? mayn't you have trained? mayn't they have trained?	mayn't I have been training? mayn't you have been training? mayn't he have been training? mayn't we have been training? mayn't you have been training? mayn't they have been training?