| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | a necessary [adj] [noun] | 28 |
|
| 2 | a necessary [adj] [noun] | 28 |
|
| 3 | a necessary [adj] [noun sg] | 28 |
|
| 4 | a necessary [adj] [noun] | 19 |
|
| 5 | a necessary [adj] step | 10 |
|
| 6 | a necessary [adj] step | 10 |
|
| 7 | a necessary [num ord] [noun] | 9 |
|
| 8 | a necessary first [noun] | 8 |
|
| 9 | a necessary first [noun] | 8 |
|
