| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [pron] be [adj] for i [verb] | 118 |
|
| 2 | [pron] be necessary for [pron] [verb] | 49 |
|
| 3 | [pron] [be] necessary for i [verb] | 13 |
|
| 4 | [pron] be necessary [prep] i [verb] | 13 |
|
