| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | have [vb pp] an [noun sg] [prep] | 1325 |
|
| 2 | have been [vb pp] [noun sg] [prep] | 397 |
|
| 3 | have been an [noun sg] [prep] | 368 |
|
| 4 | have been [vb pp] an [noun sg] | 64 |
|
| 5 | been [vb pp] an [noun sg] [prep] | 29 |
|
