| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | has [adv] been a | 753 |
|
| 2 | has [adv] been [prep] | 455 |
|
| 3 | [adv] been [prep] a | 257 |
|
| 4 | has been [prep] a | 130 |
|
| 5 | has [adv] [prep] a | 7 |
|
