| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [verb] [prep] a time [prep] | 161 |
|
| 2 | worked [prep] a [noun] [prep] | 123 |
|
| 3 | worked [prep] a [noun sg] [prep] | 123 |
|
| 4 | [vb past] [prep] a time [prep] | 47 |
|
| 5 | work [prep] a time [prep] | 11 |
|
| 6 | worked [prep] [art] time [prep] | 5 |
|
| 7 | worked [prep] a time [prep] | 5 |
|
| 8 | worked [prep] [art] time [prep] | 5 |
|
| 9 | worked [prep] a time [prep] | 5 |
|
| 10 | worked [prep] a time [prep] | 5 |
|
