| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it have be [adj] [prep] | 333 |
|
| 2 | must have be [adj] [prep] | 217 |
|
| 3 | it must have be [adj] | 156 |
|
| 4 | it must be [adj] [prep] | 147 |
|
| 5 | it must have be [prep] | 83 |
|
