| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [be] take [prep] [noun sg] | 1991 |
|
| 2 | must [be] [prep] [noun sg] | 182 |
|
| 3 | must [be] take [prep] | 180 |
|
| 4 | must take [prep] [noun sg] | 53 |
|
