| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [v-ing] [pron] [be] [v-ing] | 642 |
|
| 2 | it [pron] [be] [v-ing] | 139 |
|
| 3 | [v-ing] it [be] [v-ing] | 57 |
|
| 4 | [v-ing] it [pron] [be] | 30 |
|
