| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [verb] been widely used [prep] [noun] | 7 |
|
| 2 | have been widely used [prep] [noun] | 7 |
|
| 3 | [vb -s] been widely used [prep] [noun] | 6 |
|
| 4 | has been widely used [prep] [noun] | 6 |
|
| 5 | been widely used [prep] [art] [noun] | 7 |
|
| 6 | been widely used [prep] [art] [noun] | 7 |
|
| 7 | been widely used [prep] the [noun] | 6 |
|
| 8 | been widely used [prep] the [noun] | 6 |
|
| 9 | been widely used [prep] [adj] [noun] | 5 |
|
