| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | have been few [noun] | 29 |
|
| 2 | [vb base] been few [noun pl] | 27 |
|
| 3 | [vb base] been few studies | 6 |
|
| 4 | [vb base] been few study | 6 |
|
| 5 | [vb base] been few attempt | 5 |
|
| 6 | [vb base] been few attempts | 5 |
|
