| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | have been [verb] [adv] [prep] several | 10 |
|
| 2 | have been [v-ing] [adv] [prep] several | 8 |
|
| 3 | have been [adv] [vb pp] [prep] several | 11 |
|
| 4 | have been [adv] [verb] [prep] several | 11 |
|
