| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [pers pn] [vb mod] have be [verb] an | 11 |
|
| 2 | [pers pn] [vb mod] have been [verb] an | 11 |
|
| 3 | [pers pn] [vb mod] have be [v-ing] an | 6 |
|
