| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [noun] [conj] [prep] a period | 23 |
|
| 2 | [noun sg] [conj] [prep] a period | 18 |
|
| 3 | [verb] [conj] [prep] a period | 9 |
|
| 4 | be [conj] [prep] a period | 6 |
|
| 5 | [be] [conj] [prep] a period | 6 |
|
| 6 | [conj] [verb] [prep] a period | 26 |
|
| 7 | [conj] [noun] [prep] a period | 23 |
|
| 8 | [conj] [noun sg] [prep] a period | 12 |
|
| 9 | [conj] [adv] [prep] a period | 12 |
|
| 10 | [conj] [adv] [prep] a period | 10 |
|
| 11 | [conj] [vb pp] [prep] a period | 9 |
|
| 12 | [conj] [adj] [prep] a period | 7 |
|
| 13 | [conj] [adj] [prep] a period | 6 |
|
| 14 | [conj] [noun pl] [prep] a period | 6 |
|
| 15 | [conj] [noun prp] [prep] a period | 5 |
|
| 16 | [conj] [prep] a [adj] period | 69 |
|
| 17 | [conj] [prep] a [adj] period | 64 |
|
| 18 | [conj] [prep] a long period | 17 |
|
| 19 | [conj] [prep] a short period | 14 |
|
| 20 | [conj] [prep] a short period | 14 |
|
| 21 | [conj] [prep] a long period | 12 |
|
| 22 | [conj] [prep] a brief period | 9 |
|
| 23 | [conj] [prep] a brief period | 9 |
|
| 24 | [conj] [prep] a longer period | 5 |
|
| 25 | [conj] [prep] a [adj -er] period | 5 |
|
| 26 | [conj] [prep] a period [prep] | 57 |
|
| 27 | [conj] [prep] a period [prep] | 57 |
|
| 28 | [conj] [prep] a period of | 51 |
|
| 29 | [conj] [prep] a period of | 51 |
|
