| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb infin] [prep] be | 13096 |
|
| 2 | is [prep] be | 5949 |
|
| 3 | [vb infin] is [prep] | 102 |
|
| 4 | [vb infin] is be | 6 |
|
