| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | has [been] [verb] [prep] a | 1853 |
|
| 2 | [noun prp] has [been] [verb] [prep] | 1263 |
|
| 3 | [noun prp] has [verb] [prep] a | 218 |
|
| 4 | [noun prp] has [been] [verb] a | 116 |
|
| 5 | [noun prp] has [been] [prep] a | 11 |
|
