| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [pers pn] [was/were] [not/n't] necessary for the | 6 |
|
| 2 | [pron] [was/were] [not/n't] necessary for the | 6 |
|
| 3 | it [was/were] [not/n't] necessary for the | 6 |
|
| 4 | it [was/were] [not/n't] necessary for the | 6 |
|
| 5 | [was/were] [not/n't] necessary for the [noun] | 5 |
|
