| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | although [det] have been [vb pp] | 29 |
|
| 2 | although [adj] have been [vb pp] | 29 |
|
| 3 | although [adj] has been [vb pp] | 18 |
|
| 4 | although this have been [vb pp] | 15 |
|
| 5 | although this have been [vb pp] | 15 |
|
| 6 | although [adj] have been [vb pp] | 6 |
|
| 7 | although [adj] had been [vb pp] | 5 |
|
