| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [be] [v-ing] [adv] | 44521 |
|
| 2 | [v-ing] it [adv] | 4988 |
|
| 3 | [be] [v-ing] it | 4445 |
|
| 4 | [be] it [adv] | 2907 |
|
