| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [noun sg] [noun pl] [prep] a [noun] | 3422 |
|
| 2 | [noun sg] [noun pl] [prep] a [noun sg] | 3197 |
|
| 3 | [noun sg] [noun pl] [prep] [art] period | 121 |
|
| 4 | [noun sg] [noun] [prep] a period | 85 |
|
| 5 | [noun] [noun pl] [prep] a period | 32 |
|
| 6 | [noun sg] [noun pl] [prep] a period | 28 |
|
| 7 | [noun sg] [noun pl] [prep] a period | 28 |
|
