| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [prep] a [adj -er] [noun] | 8910 |
|
| 2 | [prep] a [adj -er] [noun sg] | 8665 |
|
| 3 | [prep] a [adj] period | 2001 |
|
| 4 | [prep] [art] [adj -er] period | 239 |
|
| 5 | [prep] a [adj -er] period | 177 |
|
