| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | have [adv] been used for | 43 |
|
| 2 | have [adv] [been] used for | 27 |
|
| 3 | has [adv] [been] used for | 20 |
|
| 4 | have not [been] used for | 16 |
|
| 5 | have [not/n't] [been] used for | 16 |
|
| 6 | had [adv] [been] used for | 13 |
|
| 7 | have not [been] used for | 12 |
|
| 8 | have [adv] [been] used for | 10 |
|
| 9 | have only [been] used for | 5 |
|
| 10 | have never [been] used for | 5 |
|
| 11 | have never [been] used for | 5 |
|
| 12 | have only [been] used for | 5 |
|
