| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [prep] a [adj] [noun] | 259267 |
|
| 2 | [prep] a [adj] [noun sg] | 251617 |
|
| 3 | [prep] [art] [adj] period | 3789 |
|
| 4 | [prep] a [adj] period | 2001 |
|
| 5 | [prep] a [adj] period | 1820 |
|
| 6 | [prep] a [adj] period | 1820 |
|
