| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | have [been] [v-ing] in a | 78 |
|
| 2 | [vb mod] have [been] [v-ing] in | 59 |
|
| 3 | [vb mod] have [been] in a | 45 |
|
| 4 | [vb mod] have [been] [v-ing] a | 43 |
|
