| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [verb] three year | 362 |
|
| 2 | [vb past] [verb] three | 343 |
|
| 3 | [vb past] three year | 147 |
|
| 4 | [vb past] [verb] year | 53 |
|
