| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it [vb past] [verb] a | 538 |
|
| 2 | [vb past] [verb] a [n mass] | 185 |
|
| 3 | it [verb] a [n mass] | 92 |
|
| 4 | it [vb past] [verb] [n mass] | 38 |
|
| 5 | it [vb past] a [n mass] | 32 |
|
