| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | although it [is] possible [verb] | 32 |
|
| 2 | although it [is] possible [to-vb] | 32 |
|
| 3 | although it is possible [verb] | 32 |
|
| 4 | although it [is] possible [verb] | 32 |
|
