| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [prep] a [adj] [noun] [adj] [noun] | 1920 |
|
| 2 | [prep] a [adj] [noun pl] [adj] [noun] | 119 |
|
| 3 | [prep] a [adj] week [adj] [noun] | 17 |
|
| 4 | [prep] [art] [adj] weeks [adj] [noun] | 9 |
|
