| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [prep] a [adj] period to | 15 |
|
| 2 | [prep] a [adj] period to | 15 |
|
| 3 | for a [adj] period to | 8 |
|
| 4 | for a [adj] period to | 8 |
|
| 5 | over a [adj] period to | 5 |
|
| 6 | over a [adj] period to | 5 |
|
| 7 | a [adj] period [verb] to | 9 |
|
| 8 | a [adj] period [adv prt] to | 6 |
|
| 9 | a [adj] period [adv] to | 6 |
|
| 10 | a [adj] period up to | 6 |
|
| 11 | a [adj] period up to | 6 |
|
| 12 | a [adj] period to [adj] | 5 |
|
