| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | necessary [to-vb] with [art] [noun sg] | 15 |
|
| 2 | necessary [to-vb] with [art] [noun sg] | 15 |
|
| 3 | necessary [to-vb] with the [noun sg] | 10 |
|
