| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | be using [noun sg] for | 11 |
|
| 2 | [been] using [noun sg] for | 7 |
|
| 3 | been using [noun sg] for | 7 |
|
| 4 | [be] using heroin for | 6 |
|
