| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | they have [been] [prep] a | 12 |
|
| 2 | they have been [prep] a | 12 |
|
| 3 | they have [been] [prep] a | 11 |
|
| 4 | they have [been] in a | 6 |
|
| 5 | they have [been] in a | 6 |
|
