| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [prep] [num] week ' | 127 |
|
| 2 | at [num] [noun] ' | 35 |
|
| 3 | at [num] week [unc] | 15 |
|
| 4 | at [adj] week ' | 14 |
|
