| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | although it [is] [vb pp] that | 42 |
|
| 2 | although [pers pn] is [vb pp] that | 42 |
|
| 3 | although [pers pn] [is] [vb pp] that | 42 |
|
| 4 | although [pers pn] [is] acknowledged that | 5 |
|
