| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [noun] [verb] [adv prt] a long period | 7 |
|
| 2 | [verb] [adv prt] [prep] a long period | 10 |
|
| 3 | [verb] [adv prt] [prep] a long period | 10 |
|
| 4 | [verb] [adv prt] a long period [prep] | 7 |
|
| 5 | [verb] [adv prt] a long period [prep] | 7 |
|
| 6 | [verb] [adv prt] a long period of | 6 |
|
| 7 | [verb] [adv prt] a long period of | 6 |
|
