| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | have been [verb] up to [art] | 20 |
|
| 2 | have been [verb] up to [art] | 20 |
|
| 3 | have been [verb] up to the | 16 |
|
| 4 | have been [verb] up to the | 16 |
|
| 5 | have been [vb pp] up to [art] | 15 |
|
| 6 | had been [verb] up to [art] | 11 |
|
| 7 | have been [v-ing] up to [art] | 5 |
|
