| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [prep] preparation for | 417 |
|
| 2 | in preparation for | 349 |
|
| 3 | of preparation for | 32 |
|
| 4 | as preparation for | 9 |
|
| 5 | on preparation for | 7 |
|
| 6 | for preparation for | 6 |
|
