| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | if [pron] [modal v] [adv] [noun] | 10 |
|
| 2 | if [pron] [modal v] acknowledge [noun] | 8 |
|
| 3 | [pron] [modal v] [adv] acknowledge [noun] | 5 |
|
| 4 | if [pron] [modal v] [adv] acknowledge | 5 |
|
