| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it have [verb] a | 1211 |
|
| 2 | must have [verb] a | 349 |
|
| 3 | it must have [verb] | 287 |
|
| 4 | it must [verb] a | 80 |
|
| 5 | it must have a | 19 |
|
