| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | of writing [prep] which | 9 |
|
| 2 | of writing [prep] [Wh det] | 9 |
|
| 3 | of writing in [Wh det] | 8 |
|
| 4 | of writing in [Wh det] | 8 |
|
