| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | have been [verb] for some years | 24 |
|
| 2 | have been [verb] for some years | 24 |
|
| 3 | have been [verb] [prep] some years | 24 |
|
| 4 | have been [vb pp] [prep] some years | 15 |
|
| 5 | had been [verb] [prep] some years | 11 |
|
| 6 | have been [v-ing] [prep] some years | 9 |
|
| 7 | has been [verb] [prep] some years | 8 |
|
