| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [prep] a few week [prep] | 63 |
|
| 2 | [vb pp] [prep] a few week | 31 |
|
| 3 | [vb pp] [prep] a week [prep] | 26 |
|
| 4 | [vb pp] [prep] a few [prep] | 12 |
|
| 5 | [vb pp] a few week [prep] | 5 |
|
