| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [adv] been used for | 49 |
|
| 2 | [adv] [been] used for | 49 |
|
| 3 | [adv] [been] used for | 32 |
|
| 4 | not [been] used for | 17 |
|
| 5 | [not/n't] [been] used for | 17 |
|
| 6 | not [been] used for | 12 |
|
| 7 | never [been] used for | 5 |
|
| 8 | never [been] used for | 5 |
|
| 9 | n't [been] used for | 5 |
|
| 10 | only [been] used for | 5 |
|
| 11 | only [been] used for | 5 |
|
