| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | is [adj] for [pron] [to-vb] | 287 |
|
| 2 | is [adj] for [pron] [to-vb] | 263 |
|
| 3 | [be] necessary for [pron] [to-vb] | 79 |
|
| 4 | be necessary for [pron] [to-vb] | 79 |
|
| 5 | [is] necessary for [pron] [to-vb] | 35 |
|
| 6 | is necessary [prep] [pron] [to-vb] | 29 |
|
| 7 | is necessary for [pron] [to-vb] | 29 |
|
| 8 | is necessary for [pron] [to-vb] | 29 |
|
| 9 | is necessary [prep] [pron] [to-vb] | 29 |
|
| 10 | is necessary for [pron] [verb] | 29 |
|
