| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it [be] [v-ing] [prep] | 2418 |
|
| 2 | [coord] it [be] [prep] | 2075 |
|
| 3 | [coord] [be] [v-ing] [prep] | 1009 |
|
| 4 | [coord] it [be] [v-ing] | 959 |
|
| 5 | [coord] it [v-ing] [prep] | 5 |
|
