| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | although it is [adv] | 421 |
|
| 2 | although it is [adv] | 271 |
|
| 3 | [conj] it is often | 213 |
|
| 4 | [subord] it is often | 74 |
|
| 5 | although [pron] is often | 15 |
|
| 6 | although it be often | 12 |
|
| 7 | although it [be] often | 12 |
|
| 8 | although it is often | 11 |
|
| 9 | although it is often | 11 |
|
| 10 | although it [is] often | 11 |
|
