| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | although it have been [verb] | 55 |
|
| 2 | although it [verb] been [verb] | 55 |
|
| 3 | although it [verb] been [verb] | 55 |
|
| 4 | although it [verb] been [vb pp] | 51 |
|
| 5 | although it [vb -s] been [verb] | 34 |
|
| 6 | although it has been [verb] | 32 |
|
| 7 | although it [vb past] been [verb] | 21 |
|
| 8 | although it had been [verb] | 21 |
|
| 9 | although it [verb] been suggested | 5 |
|
| 10 | although it [verb] been suggest | 5 |
|
