| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it is [verb] [prep] [v-ing] | 101 |
|
| 2 | it is [verb] [prep] [v-ing] | 101 |
|
| 3 | [pron] is [verb] for [v-ing] | 37 |
|
| 4 | it is [verb] for [verb] | 24 |
|
| 5 | it [be] [verb] for [v-ing] | 23 |
|
| 6 | it be [verb] for [v-ing] | 23 |
|
| 7 | it [is] [verb] for [v-ing] | 13 |
|
| 8 | it is [verb] for [v-ing] | 11 |
|
