| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | had been up [prep] | 50 |
|
| 2 | had been up to | 34 |
|
| 3 | had been up to | 34 |
|
| 4 | had been up at | 5 |
|
| 5 | had been up at | 5 |
|
