| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | for a [adv] [adj] period | 53 |
|
| 2 | for a [adv] [adj] period | 53 |
|
| 3 | for a [adv] [adj] period | 37 |
|
| 4 | for a [adv] long period | 19 |
|
| 5 | for a [adv] short period | 17 |
|
| 6 | for a very [adj] period | 15 |
|
| 7 | for a very [adj] period | 15 |
|
| 8 | for a [adv] short period | 13 |
|
| 9 | for a [adv] [adj -er] period | 12 |
|
| 10 | for a [adv] long period | 11 |
|
| 11 | for a much [adj] period | 9 |
|
| 12 | for a much [adj] period | 9 |
|
| 13 | for a relatively [adj] period | 8 |
|
| 14 | for a [adv] longer period | 8 |
|
| 15 | for a relatively [adj] period | 8 |
|
