| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [prep] if [pron] [be] [noun] | 203 |
|
| 2 | [prep] if [pron] [modal v] [be] | 136 |
|
| 3 | [prep] [pron] [modal v] [be] [noun] | 83 |
|
| 4 | if [pron] [modal v] [be] [noun] | 22 |
|
