| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [verb] [adv] [prep] a long | 117 |
|
| 2 | [verb] [prep] a long period | 91 |
|
| 3 | [verb] [adv] [prep] a period | 41 |
|
| 4 | [adv] [prep] a long period | 25 |
|
| 5 | [verb] [adv] [prep] long period | 11 |
|
