| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [prep] [adj] when [art] [noun] | 320 |
|
| 2 | [prep] [num] when [art] [noun] | 316 |
|
| 3 | [prep] 1973 when [art] [noun] | 7 |
|
| 4 | [prep] 1973 [adv] [art] [noun] | 7 |
|
| 5 | [prep] 1973 when [art] [noun] | 7 |
|
