| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | but is [verb] for | 19 |
|
| 2 | but [is] [verb] for | 19 |
|
| 3 | but [is] [vb pp] for | 10 |
|
| 4 | but [is] [v-ing] for | 9 |
|
