| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | have been many [noun] | 85 |
|
| 2 | [vb base] been many [noun pl] | 78 |
|
| 3 | [vb base] been many attempt | 7 |
|
| 4 | [vb base] been many attempts | 7 |
|
| 5 | [vb base] been many changes | 7 |
|
| 6 | [vb base] been many change | 7 |
|
| 7 | [vb base] been many study | 6 |
|
| 8 | [vb base] been many studies | 6 |
|
| 9 | [vb base] been many [noun sg] | 5 |
|
