| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [verb] it necessary for [pron] | 14 |
|
| 2 | make it necessary for [pron] | 10 |
|
| 3 | [vb base] it necessary for [pron] | 5 |
|
| 4 | it [be] necessary for [pron] | 62 |
|
| 5 | it be necessary for [pron] | 62 |
|
| 6 | it [is] necessary for [pron] | 41 |
|
| 7 | it is necessary for [pron] | 33 |
|
| 8 | it [was/were] necessary for [pron] | 17 |
|
| 9 | it was necessary for [pron] | 17 |
|
| 10 | it 's necessary for [pron] | 8 |
|
| 11 | it necessary for [pron] [to-vb] | 9 |
|
| 12 | it necessary for [pron] [verb] | 9 |
|
| 13 | it necessary for [pron] [prep] | 5 |
|
| 14 | it necessary for [pron] [prep] | 5 |
|
