| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [modal v] [vb infin] be | 24380 |
|
| 2 | [modal v] [vb infin] [is] | 1919 |
|
| 3 | [modal v] be [is] | 42 |
|
| 4 | [vb infin] be [is] | 9 |
|
