| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb past] [to-vb] a | 6170 |
|
| 2 | it [vb past] a | 3546 |
|
| 3 | it [vb past] [to-vb] | 2230 |
|
| 4 | it [to-vb] a | 209 |
|
