| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | for a [adj] period and [adv] | 5 |
|
| 2 | [prep] a [adj] period and [adv] | 5 |
|
| 3 | [prep] a [adj] period and [adv] | 5 |
|
| 4 | for a [adj] period and [adv] | 5 |
|
