| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | but [prep] a time | 25 |
|
| 2 | but [prep] a time | 25 |
|
| 3 | but at a time | 11 |
|
| 4 | but at a time | 11 |
|
| 5 | but after a time | 9 |
|
| 6 | but after a time | 9 |
|
| 7 | but a [adj] time | 9 |
|
| 8 | but a [adj] time | 8 |
|
| 9 | but a short time | 5 |
|
| 10 | but a short time | 5 |
|
