| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it [verb] [verb] | 25157 |
|
| 2 | it [vb past] [verb] | 8047 |
|
| 3 | [pron] began [verb] | 3630 |
|
| 4 | [pers pn] began [verb] | 3473 |
|
| 5 | it begin [verb] | 370 |
|
| 6 | it began [verb] | 260 |
|
