| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | had been on [noun sg] [prep] | 46 |
|
| 2 | had been on [noun] for | 11 |
|
| 3 | had been on [noun] at | 8 |
|
| 4 | 8 |
|
|
| 5 | had been on duty [prep] | 8 |
|
| 6 | had been on duty [prep] | 8 |
|
| 7 | had been on [noun] in | 7 |
|
| 8 | had been on strike [prep] | 6 |
|
| 9 | had been on strike [prep] | 6 |
|
