| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | so it is worth | 17 |
|
| 2 | whether it is worth | 7 |
|
| 3 | though it is worth | 6 |
|
| 4 | although it is worth | 5 |
|
| 5 | if it is worth | 5 |
|
