| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | catch up on the [noun pl] | 6 |
|
| 2 | catch up on [art] [noun pl] | 6 |
|
| 3 | catch up on [art] [noun pl] | 6 |
|
| 4 | catch up on the [noun pl] | 6 |
|
