| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [verb] [been] used [prep] [noun] | 233 |
|
| 2 | [verb] [been] widely used [prep] | 27 |
|
| 3 | [been] widely used [prep] [noun] | 8 |
|
| 4 | [verb] widely used [prep] [noun] | 6 |
|
