| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it [be] [adv] | 116470 |
|
| 2 | [v-ing] it [adv] | 4988 |
|
| 3 | [v-ing] it [be] | 1358 |
|
| 4 | [v-ing] [be] [adv] | 1335 |
|
