Examine the following Mongolian data:
Gloss                  Stem        Future imperative
1. enter                       [or-]       [oroːroɪ]
2. go                           [jɑv-]       [jɑvɑːrɑɪ]
3. sit                           [suː-]       [suːgɑːrɑɪ]
4. come                       [ir-]          [ireːreɪ]
5. do                           [xiː-]        [xiːgeːreɪ]
6. come out                 [gɑr-]       [gɑrɑːrɑɪ]
7. take                        [ɑv-]         [ɑvɑːrɑɪ]
8, study                       [sur-]       [surɑːrɑɪ]
9. finish                       [byteː-]    [byteːgeːreɪ]
10. drink                       [yː-]           [yːgøːrøɪ]
11. find out                   [ol-]          [oloːroɪ]
12. conquer                   [jɑl-]        [jɑlɑːrɑɪ]
13. ask                          [ɑsuː-]     [ɑsuːgɑːrɑɪ]
14. finish                       [tøgsg-]   [tøgsgøːrøɪ]
15. beat                        [dev-]       [deveːreɪ]
16. give                         [øg-]        [øgøːrøɪ]
17. say                          [xel-]        [xeleːreɪ]
18. meet                       [uːlz-]      [uːlzɑːrɑɪ]
19. become                   [bol-]       [boloːroɪ]
20. write                       [bitʃ-]        [bitʃeːreɪ]
21. develop                   [xøgdʒ-]    [xøgdʒøːrøɪ]
 
1. List all the allomorphs of the future imperative affix. Briefly describe in prose how they differ from one another. 
2. For each allomorph, briefly describe in prose the relevant conditioning environment (i.e., what properties of the environment determine the choice of this allomorph?)
3. Identify an Underlying Representation for the future imperative affix based on the least restricted allomorph. Justify/explain your answer.
4. Formulate one or more rules to derive the surface form of the affix for each allomorph. State your rule in prose.
5. Formulate your rule(s) using the formal notation following this model: X —> Y / W __ Z, where any of the variables may be specified or null (based on distinctive features).