| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | had been [v-ing] up [prep] the | 11 |
|
| 2 | have been building up [prep] the | 10 |
|
| 3 | have been [v-ing] up [prep] the | 7 |
|
| 4 | have been [v-ing] up on the | 6 |
|
| 5 | has been [v-ing] up [prep] the | 6 |
|
| 6 | have been [v-ing] up over the | 5 |
|
