| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [is] [adv] [verb] | 43760 |
|
| 2 | [is] [adv] [vb pp] | 31783 |
|
| 3 | [be] [adv] used | 2788 |
|
| 4 | [is] [adv] used | 1258 |
|
| 5 | [is] [adv] use | 1213 |
|
