| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | although there [vb base] [been] some | 8 |
|
| 2 | although there [vb base] been some | 8 |
|
| 3 | although there [vb base] [been] some | 8 |
|
| 4 | although there have [been] some | 8 |
|
