| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | have [been] [v-ing] a [adj] | 268 |
|
| 2 | they have [been] [v-ing] [adj] | 29 |
|
| 3 | they have [been] [v-ing] a | 26 |
|
| 4 | they have [been] a [adj] | 13 |
|
