| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | has [been] [verb] [prep] a [adj] | 625 |
|
| 2 | has [been] [vb pp] [prep] a [adj] | 599 |
|
| 3 | [verb] [been] used [prep] a [adj] | 32 |
|
| 4 | have [been] used [prep] a [adj] | 32 |
|
| 5 | has [been] used [prep] [art] [adj] | 29 |
|
| 6 | has [been] used [prep] [art] [adj] | 29 |
|
| 7 | has [been] used [prep] a [adj] | 16 |
|
| 8 | [vb -s] [been] used [prep] a [adj] | 15 |
|
| 9 | has [been] use [prep] a [adj] | 14 |
|
| 10 | has [been] used [prep] a [adj] | 14 |
|
| 11 | has [be] used [prep] a [adj] | 14 |
|
