| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | must [be] taken [prep] | 180 |
|
| 2 | [not/n't] [be] taken [prep] | 134 |
|
| 3 | must [not/n't] [be] taken | 19 |
|
| 4 | must [not/n't] [be] [prep] | 18 |
|
