| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [prep] it [be] [verb] | 762 |
|
| 2 | [prep] [pron] [be] going | 674 |
|
| 3 | [prep] it [be] [v-ing] | 128 |
|
| 4 | [prep] it [be] go | 25 |
|
