| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [prep] a [adj] [prep] | 1143 |
|
| 2 | [prep] [adj] week [prep] | 959 |
|
| 3 | [prep] a [adj] week | 711 |
|
| 4 | [prep] a week [prep] | 343 |
|
| 5 | a [adj] week [prep] | 263 |
|
