| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | week [prep] a | 410 |
|
| 2 | week for a | 92 |
|
| 3 | week in a | 77 |
|
| 4 | week with a | 60 |
|
| 5 | week [prep] an | 56 |
|
| 6 | week at a | 41 |
|
| 7 | week as a | 38 |
|
| 8 | week on a | 33 |
|
| 9 | week after a | 21 |
|
| 10 | week to a | 19 |
|
| 11 | week of a | 17 |
|
| 12 | week by a | 15 |
|
| 13 | week from a | 10 |
|
| 14 | week before a | 9 |
|
| 15 | week over a | 7 |
|
| 16 | week without a | 5 |
|
