| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it [be] [adv] [v-ing] [to-vb] | 361 |
|
| 2 | it [be] [adv] [v-ing] [pron] | 254 |
|
| 3 | [be] [adv] [v-ing] [pron] [to-vb] | 176 |
|
| 4 | it [be] [adv] [pron] [to-vb] | 37 |
|
| 5 | it [be] [v-ing] [pron] [to-vb] | 18 |
|
