| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [modal v] [be] used [adj] year | 6 |
|
| 2 | [vb mod] [be] used [adj] year | 6 |
|
| 3 | [be] used [prep] [adj] year | 24 |
|
| 4 | [be] used [prep] [adj] year | 24 |
|
| 5 | [be] used for [adj] year | 17 |
|
| 6 | [be] used for [adj] year | 17 |
|
| 7 | [be] used in [adj] year | 6 |
|
| 8 | [be] used in [adj] year | 6 |
|
