| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | to [be] [verb] [prep] a | 4851 |
|
| 2 | to [be] [vb pp] [prep] a | 4589 |
|
| 3 | to [be] used [prep] [art] | 423 |
|
| 4 | [prep] [be] used [prep] a | 192 |
|
| 5 | to [be] use [prep] a | 183 |
|
