| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [pron] [adv] [prep] a | 1298 |
|
| 2 | [adv] [prep] a week | 122 |
|
| 3 | [pron] [prep] a week | 86 |
|
| 4 | [pron] [adv] a week | 54 |
|
