| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [noun] [prep] [noun] [prep] a period | 76 |
|
| 2 | [noun sg] [prep] [noun] [prep] a period | 56 |
|
| 3 | [noun] [prep] [noun sg] [prep] a period | 50 |
|
| 4 | [noun] of [noun] [prep] a period | 43 |
|
| 5 | [noun] of [noun] [prep] a period | 43 |
|
| 6 | [noun] [prep] [noun] over a period | 30 |
|
| 7 | [noun] [prep] [noun] for a period | 21 |
|
| 8 | [noun] [prep] [noun pl] [prep] a period | 17 |
|
| 9 | [noun pl] [prep] [noun] [prep] a period | 14 |
|
| 10 | [noun] in [noun] [prep] a period | 10 |
|
| 11 | [noun] in [noun] [prep] a period | 10 |
|
| 12 | [noun] [prep] [noun prp] [prep] a period | 8 |
|
| 13 | [noun] [prep] [noun] in a period | 7 |
|
| 14 | [noun] [prep] [noun] after a period | 6 |
|
| 15 | [noun] for [noun] [prep] a period | 6 |
|
| 16 | [noun] for [noun] [prep] a period | 6 |
|
| 17 | [n mass] [prep] [noun] [prep] a period | 6 |
|
