| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | has been a [noun sg] | 1533 |
|
| 2 | been [prep] a [noun sg] | 728 |
|
| 3 | has been [prep] [noun sg] | 511 |
|
| 4 | has been [prep] a | 146 |
|
| 5 | has [prep] a [noun sg] | 44 |
|
