| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [conj] [noun prp] [is] [prep] | 498 |
|
| 2 | but [noun prp] [be] [prep] | 114 |
|
| 3 | but [noun] [is] [prep] | 74 |
|
| 4 | but [noun prp] [is] [prep] | 38 |
|
