| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [adj] to have a [noun sg] | 472 |
|
| 2 | necessary [verb] a [noun sg] | 214 |
|
| 3 | necessary [to-vb] a [noun sg] | 208 |
|
| 4 | necessary to have [art] [noun sg] | 23 |
|
| 5 | necessary to have [art] [noun sg] | 23 |
|
| 6 | necessary to have a [noun sg] | 21 |
|
| 7 | necessary to have a [noun] | 21 |
|
| 8 | necessary have a [noun sg] | 19 |
|
