| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | has [been] [verb] [prep] a [adj] | 850 |
|
| 2 | has [been] [vb pp] [prep] a [adj] | 812 |
|
| 3 | has [been] known [prep] [art] [adj] | 13 |
|
| 4 | [verb] [been] known [prep] a [adj] | 11 |
|
| 5 | have [been] known [prep] a [adj] | 11 |
|
| 6 | [vb -s] [been] known [prep] a [adj] | 7 |
|
| 7 | has [be] known [prep] a [adj] | 7 |
|
| 8 | has [been] know [prep] a [adj] | 7 |
|
