| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [verb] long been used [prep] [noun] | 8 |
|
| 2 | have long been used [prep] [noun] | 8 |
|
| 3 | have long been used [prep] [noun] | 5 |
|
| 4 | [vb base] long been used [prep] [noun] | 5 |
|
| 5 | long been used [prep] [art] [noun] | 8 |
|
| 6 | long been used [prep] [art] [noun] | 8 |
|
| 7 | long been used [prep] a [noun] | 5 |
|
| 8 | long been used [prep] a [noun] | 5 |
|
