| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [verb] [be] for many years | 24 |
|
| 2 | [verb] [be] used for many | 14 |
|
| 3 | [be] used for many years | 12 |
|
| 4 | [verb] [be] used for years | 6 |
|
