| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [to-vb] a [adj -er] [noun sg] | 1464 |
|
| 2 | necessary [to-vb] a [noun sg] | 208 |
|
| 3 | necessary [to-vb] a [adj -er] | 8 |
|
| 4 | necessary [to-vb] [adj -er] [noun sg] | 7 |
|
