| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [modal v] [vb infin] to [be] [art] | 909 |
|
| 2 | [vb infin] to [be] [art] first | 15 |
|
| 3 | [modal v] [vb infin] to [art] first | 10 |
|
