| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | is [verb] at [art] | 1224 |
|
| 2 | is [vb pp] at [art] | 871 |
|
| 3 | is used [prep] [art] | 592 |
|
| 4 | is used [prep] [art] | 592 |
|
| 5 | [be] used at [art] | 81 |
|
| 6 | be used at [art] | 81 |
|
| 7 | [is] used at [art] | 9 |
|
| 8 | is used at [art] | 9 |
|
| 9 | is use at [art] | 9 |
|
