| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb past] [be] for | 223 |
|
| 2 | [be] preparing for | 157 |
|
| 3 | [vb past] [be] preparing | 20 |
|
| 4 | [vb past] preparing for | 5 |
|
