| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | much [adj -er] period | 29 |
|
| 2 | much long period | 19 |
|
| 3 | much longer period | 19 |
|
| 4 | much short period | 8 |
|
| 5 | much shorter period | 8 |
|
