| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | at [art] time when [noun sg] | 154 |
|
| 2 | at [art] time when [adj] | 143 |
|
| 3 | [art] time when [adj] [noun sg] | 81 |
|
| 4 | at [art] time [adj] [noun sg] | 6 |
|
