| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [conj] [adv] a | 9730 |
|
| 2 | [subord] [adv] a | 1822 |
|
| 3 | although [adv] [art] | 336 |
|
| 4 | although [adv] a | 165 |
|
