| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb -s] it necessary | 39 |
|
| 2 | [vb -s] it necessary | 39 |
|
| 3 | makes it necessary | 12 |
|
| 4 | finds it necessary | 9 |
|
| 5 | thinks it necessary | 6 |
|
| 6 | considers it necessary | 5 |
|
