| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it [vb mod] [verb] to | 1475 |
|
| 2 | it [verb] to [v-ing] | 555 |
|
| 3 | it [vb mod] [verb] [v-ing] | 264 |
|
| 4 | [vb mod] [verb] to [v-ing] | 199 |
|
