| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb past] [prep] a | 28724 |
|
| 2 | time [prep] a | 1310 |
|
| 3 | time [vb past] [prep] | 240 |
|
| 4 | time [vb past] a | 66 |
|
