| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [conj] [pers pn] [was/were] necessary for the | 6 |
|
| 2 | [pers pn] [was/were] [adv] necessary for the | 7 |
|
| 3 | [pers pn] [was/were] [not/n't] necessary for the | 6 |
|
| 4 | [pers pn] [was/were] not necessary for the | 6 |
|
| 5 | [pers pn] [was/were] not necessary for the | 6 |
|
| 6 | [pers pn] [was/were] necessary for the [noun] | 18 |
|
| 7 | [pers pn] [was/were] necessary for the [noun sg] | 17 |
|
| 8 | [pers pn] [was/were] necessary for the [adj] | 7 |
|
| 9 | [pers pn] [was/were] necessary for the [adj] | 7 |
|
