| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [prep] a time [prep] this | 41 |
|
| 2 | [prep] a time [prep] this | 41 |
|
| 3 | at a time [prep] this | 38 |
|
| 4 | at a time [prep] this | 38 |
|
| 5 | a [adj] time [prep] this | 25 |
|
| 6 | a [adj] time [prep] this | 22 |
|
| 7 | a long time [prep] this | 12 |
|
| 8 | a long time [prep] this | 12 |
|
