| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | have been used [prep] [v-ing] [noun] | 11 |
|
| 2 | have been used [prep] [verb] [noun] | 11 |
|
| 3 | have been used for [verb] [noun] | 7 |
|
| 4 | have been used for [verb] [noun] | 7 |
|
| 5 | have been used [prep] [verb] [noun] | 6 |
|
| 6 | have been used [prep] [verb] [noun pl] | 6 |
|
| 7 | have been used [prep] [verb] [noun sg] | 5 |
|
