| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [noun] [prep] a week | 677 |
|
| 2 | [noun] a week [conj] | 315 |
|
| 3 | [prep] a week [conj] | 313 |
|
| 4 | [noun] [prep] week [conj] | 60 |
|
| 5 | [noun] [prep] a [conj] | 58 |
|
