| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb -s] been use for | 70 |
|
| 2 | [vb -s] [been] used for | 69 |
|
| 3 | has [been] use for | 63 |
|
| 4 | 's [been] use for | 7 |
|
