| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | them over a [adj] period | 8 |
|
| 2 | them over a [adj] period | 8 |
|
| 3 | them [adv prt] a [adj] period | 8 |
|
| 4 | them [adv] a [adj] period | 8 |
|
