| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | for [adv] a [adj] period [prep] | 9 |
|
| 2 | for [adv] a [adj] period [prep] | 9 |
|
| 3 | for [adv] a [adj] period [prep] | 9 |
|
| 4 | for only a [adj] period [prep] | 7 |
|
| 5 | for only a [adj] period [prep] | 7 |
|
| 6 | for [adv] a [adj] period of | 6 |
|
| 7 | for [adv] a [adj] period of | 6 |
|
