| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [is] to be use | 144 |
|
| 2 | [is] to be use | 144 |
|
| 3 | [is] [prep] be use | 144 |
|
| 4 | [is] [prep] be used | 143 |
|
| 5 | is [prep] be use | 142 |
|
