| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [verb] [prep] [v-ing] | 49623 |
|
| 2 | it [verb] [prep] | 31384 |
|
| 3 | it [verb] [v-ing] | 1188 |
|
| 4 | it [prep] [v-ing] | 1118 |
|
