| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | is require [conj] | 185 |
|
| 2 | is [verb] before | 91 |
|
| 3 | [be] require before | 35 |
|
| 4 | be require before | 35 |
|
| 5 | [is] require before | 16 |
|
