| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it [be] felt [adj] [to-vb] | 21 |
|
| 2 | it be felt [adj] [to-vb] | 21 |
|
| 3 | it [was/were] felt [adj] [to-vb] | 17 |
|
| 4 | it was felt [adj] [to-vb] | 17 |
|
| 5 | it [be] felt necessary [to-vb] | 9 |
|
