| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [adv] [det] period [prep] | 21 |
|
| 2 | [adv] [det] period [prep] | 16 |
|
| 3 | [adv] [det] period of | 12 |
|
| 4 | [adv] [det] period of | 12 |
|
| 5 | [adv] this period [prep] | 7 |
|
| 6 | [adv] any period [prep] | 5 |
|
| 7 | [adv prt] [det] period [prep] | 5 |
|
