| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it [vb past] [verb] | 8047 |
|
| 2 | it [vb past] [vb infin] | 634 |
|
| 3 | [pron] [vb past] have | 560 |
|
| 4 | it [vb past] have | 231 |
|
| 5 | it [verb] have | 182 |
|
