| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [adv] [prep] a [noun sg] | 20180 |
|
| 2 | [adv] [prep] a time | 382 |
|
| 3 | [prep] a time [noun sg] | 148 |
|
| 4 | [adv] a time [noun sg] | 16 |
|
| 5 | [adv] [prep] time [noun sg] | 8 |
|
