| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [noun] when [v-ing] at [art] [adj] | 9 |
|
| 2 | [noun sg] when [v-ing] at [art] [adj] | 5 |
|
| 3 | when [v-ing] at [art] [adj] [noun] | 17 |
|
| 4 | when [v-ing] at [art] [adj] [noun sg] | 15 |
|
