| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | been [vb pp] in [adj] studies | 39 |
|
| 2 | been [vb pp] [prep] [adj] studies | 35 |
|
| 3 | been [vb pp] [prep] [det] studies | 17 |
|
| 4 | been [vb pp] by [adj] studies | 11 |
|
| 5 | been shown [prep] [adj] studies | 9 |
|
| 6 | been found [prep] [adj] studies | 7 |
|
| 7 | been used [prep] [adj] studies | 6 |
|
| 8 | been [vb pp] [prep] some studies | 6 |
|
| 9 | been [vb pp] [prep] some studies | 6 |
|
| 10 | been [vb pp] [prep] other studies | 6 |
|
| 11 | been [vb pp] [prep] previous studies | 6 |
|
| 12 | been [vb pp] [prep] previous studies | 6 |
|
| 13 | been [vb pp] [prep] other studies | 6 |
|
| 14 | been [vb pp] [prep] several studies | 5 |
|
| 15 | been [vb pp] [prep] several studies | 5 |
|
