| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [adj] for that purpose | 25 |
|
| 2 | [adj] for that purpose | 24 |
|
| 3 | necessary for that [noun] | 13 |
|
| 4 | necessary for that [noun sg] | 13 |
|
| 5 | necessary for [adj] purpose | 10 |
|
| 6 | necessary for that purpose | 6 |
|
| 7 | necessary [prep] that purpose | 6 |
|
| 8 | necessary for that purpose | 6 |
|
