| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | have been [v-ing] a good | 8 |
|
| 2 | have been [vb pp] a good | 8 |
|
| 3 | had been [verb] a good | 6 |
|
| 4 | has been [verb] a good | 5 |
|
