| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [noun pl] [conj] are necessary for | 13 |
|
| 2 | [noun pl] [that] are necessary for | 8 |
|
| 3 | [noun pl] that are necessary for | 8 |
|
| 4 | [noun pl] that are necessary for | 8 |
|
| 5 | [noun pl] as are necessary for | 5 |
|
| 6 | [noun pl] [subord] are necessary for | 5 |
|
| 7 | [noun pl] as are necessary for | 5 |
|
