| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [noun] [prep] a period [prep] [art] | 35 |
|
| 2 | [noun sg] [prep] a period [prep] [art] | 24 |
|
| 3 | [verb] [prep] a period [prep] [art] | 18 |
|
| 4 | [noun pl] [prep] a period [prep] [art] | 10 |
|
| 5 | [vb pp] [prep] a period [prep] [art] | 6 |
|
| 6 | [adv] [prep] a period [prep] [art] | 6 |
|
| 7 | [conj] [prep] a period [prep] [art] | 6 |
|
| 8 | [adv] [prep] a period [prep] [art] | 5 |
|
| 9 | [prep] a [adj] period [prep] [art] | 86 |
|
| 10 | [prep] a [adj] period [prep] [art] | 80 |
|
| 11 | [prep] a long period [prep] [art] | 13 |
|
| 12 | [prep] a long period [prep] [art] | 10 |
|
| 13 | [prep] a brief period [prep] [art] | 10 |
|
| 14 | [prep] a brief period [prep] [art] | 10 |
|
| 15 | [prep] a short period [prep] [art] | 9 |
|
| 16 | [prep] a short period [prep] [art] | 9 |
|
| 17 | [prep] a [noun] period [prep] [art] | 8 |
|
| 18 | [prep] a [noun sg] period [prep] [art] | 8 |
|
| 19 | [prep] a [adj -er] period [prep] [art] | 6 |
|
| 20 | [prep] a period [verb] [prep] [art] | 8 |
|
| 21 | [prep] a period [vb pp] [prep] [art] | 6 |
|
| 22 | [prep] a period [prep] [noun] [art] | 12 |
|
| 23 | [prep] a period [prep] which [art] | 10 |
|
| 24 | [prep] a period [prep] [pron] [art] | 10 |
|
| 25 | [prep] a period [prep] [Wh det] [art] | 10 |
|
| 26 | [prep] a period [prep] which [art] | 10 |
|
| 27 | [prep] a period [prep] [noun sg] [art] | 10 |
|
| 28 | [prep] a period [prep] time [art] | 7 |
|
| 29 | [prep] a period [prep] time [art] | 7 |
|
| 30 | [prep] a period [prep] [adv] [art] | 5 |
|
