| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | but it [vb mod] [verb] to be | 21 |
|
| 2 | but it [vb mod] [vb infin] to be | 21 |
|
| 3 | but it [vb mod] have to be | 14 |
|
| 4 | but it [vb mod] have to be | 14 |
|
| 5 | but it [vb mod] to be [adj] | 5 |
|
