| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [prep] [v-ing] [conj] [pron] [be] | 810 |
|
| 2 | [prep] [verb] [conj] it [be] | 236 |
|
| 3 | [prep] [v-ing] [conj] it [be] | 224 |
|
