| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [noun] has been [verb] up to | 12 |
|
| 2 | [noun sg] has been [verb] up to | 9 |
|
| 3 | has been [verb] up to [adj] | 8 |
|
| 4 | has been [verb] up to [noun] | 5 |
|
