| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | is [adj] [verb] [det] [adj] [noun] | 243 |
|
| 2 | is [adj] [verb] [det] [adj] [noun] | 233 |
|
| 3 | [be] necessary [verb] [det] [adj] [noun] | 30 |
|
| 4 | be necessary [verb] [det] [adj] [noun] | 30 |
|
| 5 | is necessary [verb] [adj] [adj] [noun] | 22 |
|
| 6 | [is] necessary [verb] [det] [adj] [noun] | 11 |
|
| 7 | is necessary [verb] [det] [adj] [noun] | 10 |
|
