| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | be [to-vb] or [vb infin] [prep] | 11 |
|
| 2 | be [to-vb] or [verb] [prep] | 11 |
|
| 3 | is [to-vb] or [verb] [prep] | 5 |
|
