| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | have [been] [verb] [prep] a [adj] | 2444 |
|
| 2 | have [been] [v-ing] [prep] [art] [adj] | 587 |
|
| 3 | [verb] [been] [v-ing] [prep] a [adj] | 200 |
|
| 4 | have [be] [v-ing] [prep] a [adj] | 200 |
|
