| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | what [pron] [modal v] [verb] is for | 5 |
|
| 2 | what [pron] [vb mod] [verb] is for | 5 |
|
| 3 | what [pron] [verb] is [adj] for | 7 |
|
| 4 | what [pron] [verb] is good for | 5 |
|
| 5 | what [pron] [verb] is [adj -est] for | 5 |
|
| 6 | what [pron] [verb] is best for | 5 |
|
