| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [prep] if [pron] [modal v] [vb infin] | 429 |
|
| 2 | be if [pron] [modal v] [vb infin] | 64 |
|
| 3 | be [prep] [pron] [modal v] [vb infin] | 21 |
|
| 4 | be [prep] if [pron] [modal v] | 21 |
|
