| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | they [verb] [been] used [prep] [adj] | 7 |
|
| 2 | they [verb] been used [prep] [adj] | 7 |
|
| 3 | they [vb base] [been] used [prep] [adj] | 7 |
|
| 4 | they have [been] used [prep] [adj] | 7 |
|
| 5 | they have [been] used [prep] [adj] | 6 |
|
