| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | have been on a | 112 |
|
| 2 | had been on a | 36 |
|
| 3 | has been on a | 17 |
|
| 4 | have been on a | 16 |
|
| 5 | 've been on a | 12 |
|
| 6 | 's been on a | 9 |
|
| 7 | have been on a | 8 |
|
| 8 | 'd been on a | 6 |
|
