| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it [be] [verb] necessary | 42 |
|
| 2 | it [be] feel [adj] | 36 |
|
| 3 | it [be] feel [adj] | 30 |
|
| 4 | [pron] [be] feel necessary | 10 |
|
| 5 | [pers pn] [be] feel necessary | 9 |
|
| 6 | it [be] feel necessary | 9 |
|
| 7 | it [be] feel necessary | 9 |
|
