| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [noun sg] [prep] a [adj] time | 742 |
|
| 2 | on [noun sg] [prep] a [adj] | 507 |
|
| 3 | on [noun sg] [prep] [adj] time | 32 |
|
| 4 | on [noun sg] [prep] a time | 6 |
|
