| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [verb] been a [noun sg] | 4817 |
|
| 2 | [verb] once a [noun sg] | 189 |
|
| 3 | [verb] once been a | 82 |
|
| 4 | once been a [noun sg] | 53 |
|
| 5 | [verb] once been [noun sg] | 12 |
|
