| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [prep] [adv] a week | 184 |
|
| 2 | for [adv] a week | 92 |
|
| 3 | [prep] about a week | 45 |
|
| 4 | [prep] least a week | 43 |
|
| 5 | at [adv] a week | 43 |
|
| 6 | [prep] over a week | 22 |
|
| 7 | [prep] nearly a week | 15 |
|
| 8 | [prep] once a week | 14 |
|
| 9 | in [adv] a week | 11 |
|
| 10 | [prep] just a week | 11 |
|
| 11 | to [adv] a week | 10 |
|
| 12 | after [adv] a week | 9 |
|
| 13 | [prep] almost a week | 9 |
|
| 14 | [prep] only a week | 9 |
|
| 15 | with [adv] a week | 6 |
|
| 16 | of [adv] a week | 5 |
|
