| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | is frequently used [prep] | 21 |
|
| 2 | is frequently used in | 8 |
|
| 3 | is frequently used in | 8 |
|
| 4 | is frequently used as | 5 |
|
| 5 | is frequently used as | 5 |
|
