| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [conj] it is not necessary for | 11 |
|
| 2 | it is not necessary for [art] | 24 |
|
| 3 | it is not necessary for [art] | 24 |
|
| 4 | it is not necessary for the | 17 |
|
| 5 | it is not necessary for the | 17 |
|
| 6 | it is not necessary for [pers pn] | 9 |
|
| 7 | it is not necessary for [pron] | 9 |
|
| 8 | it is not necessary for a | 5 |
|
