| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb -s] [adv] been use for | 15 |
|
| 2 | [vb -s] [adv] be use for | 15 |
|
| 3 | has [adv] [be] use for | 15 |
|
| 4 | [vb -s] [adv] [been] use for | 15 |
|
| 5 | [vb -s] [adv] [be] used for | 14 |
|
