| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [adj] [prep] an [adj] [noun] | 2043 |
|
| 2 | [adj] [prep] an [adj] [noun sg] | 1979 |
|
| 3 | [adj] [prep] [art] [adj] period | 305 |
|
| 4 | [adj] [prep] [art] [adj] period | 305 |
|
| 5 | [adj] [prep] a [adj] period | 106 |
|
| 6 | [adj] [prep] an [adj] period | 9 |
|
| 7 | [adj] [prep] an [adj] period | 9 |
|
