| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | which is [verb] | 7063 |
|
| 2 | [pron] is require | 373 |
|
| 3 | which be require | 110 |
|
| 4 | which [be] require | 110 |
|
| 5 | which [is] require | 48 |
|
