| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [noun sg] a [noun] [prep] | 4523 |
|
| 2 | when a [noun] [prep] | 213 |
|
| 3 | [noun sg] when a [noun] | 155 |
|
| 4 | [noun sg] when [noun] [prep] | 151 |
|
