| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb mod] be [adj] for [pron] [verb] | 265 |
|
| 2 | [vb mod] be necessary [prep] [pron] [verb] | 13 |
|
| 3 | [modal v] be necessary for [pron] [verb] | 12 |
|
| 4 | [vb mod] [be] necessary for [pron] [verb] | 12 |
|
