| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | has [been] a [adj] | 1851 |
|
| 2 | [been] [v-ing] a [adj] | 364 |
|
| 3 | has [been] [v-ing] a | 200 |
|
| 4 | has [been] [v-ing] [adj] | 142 |
|
