| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | been used [prep] [adj] [noun pl] | 77 |
|
| 2 | been used in [adj] [noun pl] | 45 |
|
| 3 | been used for [adj] [noun pl] | 39 |
|
| 4 | been used [prep] [det] [noun pl] | 36 |
|
| 5 | been used by [adj] [noun pl] | 21 |
|
| 6 | been used [prep] [adj] years | 21 |
|
| 7 | been used [prep] many [noun pl] | 17 |
|
| 8 | been used [prep] many [noun pl] | 17 |
|
| 9 | been used [prep] [num] [noun pl] | 10 |
|
| 10 | been used [prep] some [noun pl] | 8 |
|
| 11 | been used [prep] other [noun pl] | 8 |
|
| 12 | been used [prep] other [noun pl] | 8 |
|
| 13 | been used [prep] some [noun pl] | 8 |
|
| 14 | been used [prep] [adj] studies | 6 |
|
| 15 | been used [prep] two [noun pl] | 6 |
|
| 16 | been used [prep] [adj] times | 6 |
|
| 17 | been used [prep] two [noun pl] | 6 |
|
