| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [noun sg] [noun pl] [prep] a [adj] period | 23 |
|
| 2 | [noun sg] [noun pl] [prep] a [adj] period | 21 |
|
| 3 | [noun sg] [noun pl] [prep] a long [noun sg] | 21 |
|
| 4 | [noun sg] [noun pl] [prep] a long [noun] | 21 |
|
| 5 | [noun sg] [noun] [prep] a long period | 17 |
|
| 6 | [noun sg] [noun pl] [prep] a long period | 7 |
|
| 7 | [noun sg] [noun pl] [prep] a long period | 5 |
|
| 8 | [noun] [noun pl] [prep] a long period | 5 |
|
| 9 | [noun sg] [noun pl] [prep] a long period | 5 |
|
| 10 | [noun sg] [noun pl] [prep] [art] long period | 5 |
|
| 11 | [noun sg] [noun pl] [prep] [art] long period | 5 |
|
| 12 | [noun sg] [noun pl] [prep] a long period | 5 |
|
