| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [noun prp] has been [prep] | 257 |
|
| 2 | [noun prp] has been a | 194 |
|
| 3 | has been [prep] a | 130 |
|
| 4 | [noun prp] has [prep] a | 8 |
|
