| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [verb] [adv] [verb] a period [prep] | 6 |
|
| 2 | have [adv] [verb] a period [prep] | 6 |
|
| 3 | [modal v] [adv] [verb] a period [prep] | 5 |
|
| 4 | [vb mod] [adv] [verb] a period [prep] | 5 |
|
| 5 | [noun] [adv] [verb] a period [prep] | 5 |
|
| 6 | [adv] [verb] [prep] a period [prep] | 38 |
|
| 7 | [adv] [verb] [prep] a period [prep] | 38 |
|
| 8 | [adv] [verb] over a period [prep] | 8 |
|
| 9 | [adv] [verb] [adv prt] a period [prep] | 8 |
|
| 10 | [adv] [verb] over a period [prep] | 8 |
|
| 11 | [adv] [verb] [adv] a period [prep] | 8 |
|
| 12 | [adv] [verb] over a period [prep] | 7 |
|
| 13 | [adv] [verb] for a period [prep] | 7 |
|
| 14 | [adv] [verb] for a period [prep] | 7 |
|
| 15 | [adv] [verb] over a period [prep] | 7 |
|
| 16 | [adv] [verb] a [adj] period [prep] | 24 |
|
| 17 | [adv] [verb] a [adj] period [prep] | 21 |
|
| 18 | [adv] [verb] a long period [prep] | 5 |
|
| 19 | [adv] [verb] a long period [prep] | 5 |
|
| 20 | [adv] [verb] a period [prep] [noun] | 12 |
|
| 21 | [adv] [verb] a period [prep] [noun sg] | 11 |
|
| 22 | [adv] [verb] a period [prep] [adj] | 10 |
|
| 23 | [adv] [verb] a period [prep] [adj] | 7 |
|
