| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | but [pron] [verb] to [be] a | 54 |
|
| 2 | but [pron] [vb past] to [be] a | 25 |
|
| 3 | [conj] [pron] proved to [be] a | 9 |
|
| 4 | but [pron] proved to [be] [art] | 6 |
|
| 5 | but [pron] proved [prep] [be] a | 5 |
|
| 6 | but [pron] prove to [be] a | 5 |
|
