| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | but one must [adv] [vb infin] | 5 |
|
| 2 | but one must [vb infin] [conj] | 7 |
|
| 3 | but one must [vb infin] that | 5 |
|
| 4 | but one must [vb infin] that | 5 |
|
| 5 | but one must [vb infin] [that] | 5 |
|
