| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | not necessary [to-vb] the [noun sg] | 30 |
|
| 2 | not necessary [verb] the [noun sg] | 30 |
|
| 3 | not necessary safeguard the [noun sg] | 5 |
|
| 4 | not necessary to safeguard the [noun sg] | 5 |
|
| 5 | not necessary [verb] the child | 5 |
|
