| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [modal v] [be] [verb] for [det] years | 7 |
|
| 2 | [vb mod] [be] [verb] for [det] years | 7 |
|
| 3 | [adv] [be] [verb] for [det] years | 5 |
|
| 4 | [be] [verb] for [det] [adj] years | 5 |
|
