| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | period [prep] time [pers pn] | 21 |
|
| 2 | period of time [pers pn] | 21 |
|
| 3 | period of time [pers pn] | 21 |
|
| 4 | period [prep] time [pers pn] | 20 |
|
| 5 | period [prep] time they | 6 |
|
