| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | has proved to be [adj] | 35 |
|
| 2 | has got to be [adj] | 19 |
|
| 3 | has continued to be [adj] | 9 |
|
| 4 | has tended to be [adj] | 8 |
|
| 5 | has [vb pp] to be successful | 5 |
|
