| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | they [verb] [adv] been used | 10 |
|
| 2 | they have [adv] be used | 10 |
|
| 3 | they [vb base] [adv] be used | 8 |
|
| 4 | they have [adv] be used | 8 |
|
