| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | had be for [det] years | 10 |
|
| 2 | [vb past] been for [det] years | 10 |
|
| 3 | [vb past] be for [det] years | 10 |
|
| 4 | [vb past] be for many years | 7 |
|
