| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | be catch up [prep] [det] | 14 |
|
| 2 | be caught up [prep] [det] | 11 |
|
| 3 | be catch up in [det] | 11 |
|
| 4 | be catch up [prep] this | 6 |
|
