| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [verb] for that purpose | 47 |
|
| 2 | [vb pp] for that purpose | 37 |
|
| 3 | used for that purpose | 12 |
|
| 4 | use for that purpose | 12 |
|
| 5 | [to-vb] for that purpose | 5 |
|
