| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [pers pn] have been a [noun] | 948 |
|
| 2 | [pron] have been a mistake | 35 |
|
| 3 | [pers pn] have been [art] mistake | 23 |
|
| 4 | [pers pn] have [be] a mistake | 23 |
|
| 5 | [pers pn] have been [art] mistake | 23 |
|
| 6 | [pers pn] have be a mistake | 23 |
|
| 7 | [pers pn] have been a mistake | 23 |
|
| 8 | [pers pn] have [been] a mistake | 23 |
|
| 9 | [pers pn] [verb] been a mistake | 23 |
|
