| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | much [adj] period [prep] | 7 |
|
| 2 | much [adj] period of | 7 |
|
| 3 | much [adj] period of | 7 |
|
| 4 | much [adj -er] period [prep] | 7 |
|
