| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | have [adv] been used in | 38 |
|
| 2 | has [adv] been used in | 20 |
|
| 3 | have [adv] been used in | 18 |
|
| 4 | have not been used in | 12 |
|
| 5 | have [not/n't] been used in | 12 |
|
| 6 | have not been used in | 12 |
|
| 7 | have also been used in | 11 |
|
| 8 | have also been used in | 11 |
|
| 9 | had [adv] been used in | 10 |
|
