| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [modal v] [be] [vb pp] for [adj] | 1248 |
|
| 2 | [be] [vb pp] for [adj] years | 482 |
|
| 3 | [modal v] [be] [vb pp] for years | 8 |
|
| 4 | [modal v] [be] for [adj] years | 7 |
|
