| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | although the [adj] system | 8 |
|
| 2 | although the [adj] system | 8 |
|
| 3 | although the [noun] system | 6 |
|
| 4 | although the [noun sg] system | 5 |
|
| 5 | although the system [verb] | 5 |
|
