| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [conj] [pers pn] [is] necessary [prep] we | 5 |
|
| 2 | [pers pn] [is] necessary [prep] we [to-vb] | 10 |
|
| 3 | [pers pn] [is] necessary [prep] we [verb] | 10 |
|
