| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [noun] for which | 2673 |
|
| 2 | [noun pl] for which | 1003 |
|
| 3 | purpose for which | 176 |
|
| 4 | purposes [prep] which | 89 |
|
| 5 | purposes for [pron] | 85 |
|
| 6 | purposes for which | 79 |
|
| 7 | purposes for [Wh det] | 79 |
|
