| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [modal v] [be] necessary for [det] [noun] | 9 |
|
| 2 | [modal v] [be] necessary for [det] [noun] | 9 |
|
| 3 | [vb mod] [be] necessary for [det] [noun] | 9 |
|
| 4 | [modal v] [be] necessary for [det] [noun] | 9 |
|
| 5 | [modal v] be necessary for [det] [noun] | 9 |
|
| 6 | [modal v] be necessary for [det] [noun] | 9 |
|
| 7 | [modal v] [be] necessary for [det] [noun sg] | 5 |
|
