| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it must have be [prep] | 83 |
|
| 2 | it must have be [noun] | 41 |
|
| 3 | must have be [noun] [prep] | 29 |
|
| 4 | it have be [noun] [prep] | 26 |
|
| 5 | it must be [noun] [prep] | 16 |
|
