| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it was [adj] for [pron] [to-vb] | 166 |
|
| 2 | it was [adj] for [pron] [to-vb] | 152 |
|
| 3 | it be necessary for [pron] [to-vb] | 48 |
|
| 4 | it [be] necessary for [pron] [to-vb] | 48 |
|
| 5 | [pron] was necessary for [pron] [to-vb] | 14 |
|
| 6 | it [was/were] necessary for [pron] [to-vb] | 14 |
|
| 7 | [pers pn] was necessary for [pron] [to-vb] | 14 |
|
| 8 | it was necessary [prep] [pron] [to-vb] | 14 |
|
| 9 | it was necessary for [pron] [to-vb] | 14 |
|
| 10 | it was necessary for [pron] [to-vb] | 14 |
|
| 11 | it was necessary for [pron] [verb] | 14 |
|
