| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb past] for a time [prep] | 30 |
|
| 2 | [vb past] for a time in | 10 |
|
| 3 | worked for a time [prep] | 5 |
|
| 4 | [vb past] for a time to | 5 |
|
