| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [noun] [conj] a period [prep] | 20 |
|
| 2 | [noun sg] [conj] a period [prep] | 15 |
|
| 3 | [verb] [conj] a period [prep] | 9 |
|
| 4 | [adj] [conj] a period [prep] | 9 |
|
| 5 | [num] [conj] a period [prep] | 8 |
|
| 6 | [conj] [prep] a period [prep] | 57 |
|
| 7 | [conj] [prep] a period [prep] | 57 |
|
| 8 | [conj] over a period [prep] | 25 |
|
| 9 | [conj] over a period [prep] | 25 |
|
| 10 | [conj] [verb] a period [prep] | 23 |
|
| 11 | [conj] for a period [prep] | 13 |
|
| 12 | [conj] for a period [prep] | 13 |
|
| 13 | [conj] after a period [prep] | 11 |
|
| 14 | [conj] after a period [prep] | 11 |
|
| 15 | [conj] [vb past] a period [prep] | 6 |
|
| 16 | [conj] [vb base] a period [prep] | 5 |
|
| 17 | [conj] [adv] a period [prep] | 5 |
|
| 18 | [conj] [adv] a period [prep] | 5 |
|
| 19 | [conj] [v-ing] a period [prep] | 5 |
|
| 20 | [conj] a [adj] period [prep] | 45 |
|
| 21 | [conj] a [adj] period [prep] | 40 |
|
| 22 | [conj] a long period [prep] | 7 |
|
| 23 | [conj] a short period [prep] | 5 |
|
| 24 | [conj] a long period [prep] | 5 |
|
| 25 | [conj] a short period [prep] | 5 |
|
| 26 | [conj] a period [prep] [adj] | 41 |
|
| 27 | [conj] a period [prep] [noun] | 34 |
|
| 28 | [conj] a period [prep] [noun sg] | 32 |
|
| 29 | [conj] a period [prep] [adj] | 23 |
|
| 30 | [conj] a period [prep] [num] | 17 |
|
