| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | been [verb] [prep] a [noun sg] | 3431 |
|
| 2 | [verb] in [prep] a [noun sg] | 643 |
|
| 3 | been [verb] in [prep] a | 23 |
|
| 4 | been [verb] in [prep] [noun sg] | 18 |
|
