| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it [is] [prep] [v-ing] | 1727 |
|
| 2 | it [is] [prep] [v-ing] | 1727 |
|
| 3 | [pron] [is] for [v-ing] | 45 |
|
| 4 | it [be] for [v-ing] | 42 |
|
| 5 | it [is] for [v-ing] | 37 |
|
| 6 | it [is] for [verb] | 37 |
|
