| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | be put [prep] [noun sg] | 340 |
|
| 2 | must be [prep] [noun sg] | 182 |
|
| 3 | must be put [prep] | 28 |
|
| 4 | must put [prep] [noun sg] | 8 |
|
