| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [pron] must [be] [verb] | 3134 |
|
| 2 | [pron] must [verb] a | 780 |
|
| 3 | [pron] must [be] a | 713 |
|
| 4 | must [be] [verb] a | 98 |
|
| 5 | [pron] [be] [verb] a | 27 |
|
