| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb mod] have [been] [vb pp] [prep] a | 313 |
|
| 2 | [vb mod] have [been] [vb pp] [prep] a | 313 |
|
| 3 | [vb mod] have [been] [vb pp] at [art] | 46 |
|
| 4 | [vb mod] have [been] [vb pp] at [art] | 46 |
|
| 5 | [vb mod] have [been] [verb] at a | 10 |
|
| 6 | [vb mod] have [been] [vb pp] at a | 10 |
|
| 7 | [vb mod] have [been] [vb pp] at a | 8 |
|
| 8 | [modal v] have [been] [vb pp] at a | 8 |
|
| 9 | [vb mod] have [been] [vb pp] at a | 8 |
|
| 10 | [vb mod] [vb infin] [been] [vb pp] at a | 8 |
|
| 11 | [vb mod] have [be] [vb pp] at a | 8 |
|
| 12 | [vb mod] [verb] [been] [vb pp] at a | 8 |
|
