| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [subord] it [be] [adv] [v-ing] | 251 |
|
| 2 | it [subord] it [be] [adv] | 103 |
|
| 3 | it [subord] it [be] [v-ing] | 14 |
|
| 4 | it it [be] [adv] [v-ing] | 10 |
|
