| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [adv] [prep] [adj] period [prep] | 24 |
|
| 2 | [adv] [prep] [det] period [prep] | 23 |
|
| 3 | [adv] [prep] [adj] period of | 15 |
|
| 4 | [adv] [prep] [adj] period of | 15 |
|
| 5 | [adv] [prep] [adj] period [prep] | 15 |
|
| 6 | [adv] [prep] this period [prep] | 9 |
|
| 7 | [adv] [prep] this period [prep] | 9 |
|
| 8 | [adv prt] [prep] [adj] period [prep] | 9 |
|
| 9 | [adv] [prep] any period [prep] | 6 |
|
| 10 | [adv] [prep] any period [prep] | 6 |
|
| 11 | [adv] [prep] that period [prep] | 5 |
|
| 12 | [adv] [prep] that period [prep] | 5 |
|
