| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | for a much [adj -er] period | 9 |
|
| 2 | for a much [adj] period | 9 |
|
| 3 | for a much [adj] period | 9 |
|
| 4 | for a much longer period | 6 |
|
| 5 | for a much long period | 6 |
|
