| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [verb] [been] [noun pl] over time | 5 |
|
| 2 | [vb base] [been] [noun pl] over time | 5 |
|
| 3 | have [been] [noun pl] over time | 5 |
|
| 4 | have [been] [noun pl] over time | 5 |
|
