| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [pron] has been a | 1758 |
|
| 2 | [pron] has been [prep] | 587 |
|
| 3 | has been [prep] a | 130 |
|
| 4 | [pron] has [prep] a | 21 |
|
| 5 | [pron] been [prep] a | 19 |
|
