| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [noun] for which | 2673 |
|
| 2 | [noun sg] for which | 1571 |
|
| 3 | purpose for which | 176 |
|
| 4 | purpose [prep] which | 150 |
|
| 5 | purpose for [pron] | 124 |
|
| 6 | purpose for [Wh det] | 98 |
|
| 7 | purpose for which | 97 |
|
