| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it [be] [v-ing] to | 1196 |
|
| 2 | [vb past] it [be] [v-ing] | 322 |
|
| 3 | [vb past] [be] [v-ing] to | 169 |
|
| 4 | [vb past] it [be] to | 12 |
|
| 5 | [vb past] it [v-ing] to | 6 |
|
