| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [adv] [verb] [prep] long periods | 11 |
|
| 2 | [adv] [verb] [prep] long period | 11 |
|
| 3 | [adv] [verb] for long period | 9 |
|
| 4 | [adv] [verb] for long period | 9 |
|
| 5 | [adv] [verb] [prep] long period | 6 |
|
| 6 | not [verb] [prep] long period | 5 |
|
| 7 | [not/n't] [verb] [prep] long period | 5 |
|
