| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | be used [prep] a [adj] | 450 |
|
| 2 | [adv] be used [prep] a | 181 |
|
| 3 | [adv] be [prep] a [adj] | 143 |
|
| 4 | [adv] be used [prep] [adj] | 114 |
|
| 5 | [adv] used [prep] a [adj] | 73 |
|
