| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | only be [verb] for a | 17 |
|
| 2 | only be [vb pp] for a | 14 |
|
| 3 | only be [verb] for a | 12 |
|
| 4 | only been [verb] for a | 5 |
|
