| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | but [det] [is] [art] problem | 18 |
|
| 2 | but that [is] [art] problem | 16 |
|
| 3 | but [det] 's [art] problem | 10 |
|
| 4 | but [det] [is] no problem | 9 |
|
| 5 | but [det] is [art] problem | 8 |
|
| 6 | but [det] [is] the problem | 5 |
|
