1. I
2. me
3. my

1. to exist; to be alive
2. (of sb or sth) to be (located) at
3. (used before a verb to indicate an action in progress)

1. no; not so
2. (bound form) not; un-

1. to work
2. (of a machine) to operate
3. job
4. work
5. task

classifiers: 個, 份, 項