| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | be [subord] [art] [noun] | 1156 |
|
| 2 | necessary [subord] [art] [noun] | 106 |
|
| 3 | be necessary [subord] [art] | 105 |
|
| 4 | be necessary [subord] [noun] | 49 |
|
| 5 | be necessary [art] [noun] | 6 |
|
