| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [conj] it is [adv] necessary for | 8 |
|
| 2 | it is [adv] [adv] necessary for | 9 |
|
| 3 | it is [adv] [adv] necessary for | 5 |
|
| 4 | it is [adv] [adv] necessary for | 7 |
|
| 5 | it is [adv] [adv] necessary for | 5 |
|
| 6 | it is [adv] necessary for [art] | 15 |
|
| 7 | it is [adv] necessary for [art] | 15 |
|
| 8 | it is [adv] necessary for the | 15 |
|
| 9 | it is [adv] necessary for the | 15 |
|
| 10 | it is [adv] necessary for [pron] | 5 |
|
