| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | used [prep] a [adj] time | 7 |
|
| 2 | used [prep] a [adj] time | 7 |
|
| 3 | used for a [adj] time | 5 |
|
| 4 | used for a [adj] time | 5 |
|
