| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [verb] [adv prt] for a | 1879 |
|
| 2 | [verb] for a period | 105 |
|
| 3 | [verb] [adv prt] a period | 71 |
|
| 4 | [adv prt] for a period | 9 |
|
