| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb past] [prep] a [det] [noun] | 241 |
|
| 2 | [verb] [prep] a [det] week | 93 |
|
| 3 | [vb past] [prep] a [adj] week | 21 |
|
| 4 | [vb past] [prep] [art] [det] week | 16 |
|
| 5 | [vb past] [prep] [art] [det] week | 16 |
|
| 6 | [vb past] [prep] a [det] week | 13 |
|
