| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | must [verb] their | 290 |
|
| 2 | [modal v] submit their | 11 |
|
| 3 | [vb mod] submit their | 11 |
|
| 4 | must submit [pron] | 11 |
|
| 5 | must submit their | 6 |
|
