| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | had [adv] been [v-ing] [noun pl] | 12 |
|
| 2 | has [adv] been [v-ing] [noun pl] | 10 |
|
| 3 | have also been [v-ing] [noun pl] | 7 |
|
| 4 | have recently been [v-ing] [noun pl] | 6 |
|
| 5 | have [adv] been [v-ing] [noun pl] | 6 |
|
| 6 | have already been [v-ing] [noun pl] | 5 |
|
