| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | has been used [prep] [det] [noun pl] | 20 |
|
| 2 | has been used in [adj] [noun pl] | 19 |
|
| 3 | has been used [prep] [adj] [noun pl] | 18 |
|
| 4 | has been used [prep] many [noun pl] | 10 |
|
| 5 | has been used for [adj] [noun pl] | 10 |
|
| 6 | has been used by [adj] [noun pl] | 10 |
|
| 7 | has been used [prep] many [noun pl] | 10 |
|
| 8 | has been used [prep] [adj] years | 8 |
|
