| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | but it must have [be] [adv] | 12 |
|
| 2 | but it must have [be] [adv] | 11 |
|
| 3 | but it must have [be] [adj] | 10 |
|
| 4 | but it must have [be] [adj] | 9 |
|
