| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it 's [prep] [v-ing] | 520 |
|
| 2 | it 's [v-ing] [to-vb] | 516 |
|
| 3 | it [prep] [v-ing] [to-vb] | 33 |
|
| 4 | it 's [prep] [to-vb] | 28 |
|
| 5 | 's [prep] [v-ing] [to-vb] | 18 |
|
