| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it be necessary for they [to-vb] | 5 |
|
| 2 | [pron] be necessary for them [to-vb] | 5 |
|
| 3 | [pron] be necessary for they [to-vb] | 5 |
|
| 4 | [pers pn] be necessary for they [to-vb] | 5 |
|
| 5 | it be necessary for they [to-vb] | 5 |
|
