| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | has [adv] been [v-ing] [noun pl] | 12 |
|
| 2 | has [adv] been [verb] [noun pl] | 12 |
|
| 3 | has recently been [verb] [noun pl] | 5 |
|
| 4 | has recently been [verb] [noun pl] | 5 |
|
