| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | may be [verb] [prep] an | 212 |
|
| 2 | may be [vb pp] [prep] an | 202 |
|
| 3 | may be used [prep] [art] | 111 |
|
| 4 | may be used [prep] [art] | 111 |
|
| 5 | [modal v] be used [prep] an | 106 |
|
| 6 | may be used [prep] a | 62 |
|
| 7 | may be used [prep] an | 12 |
|
| 8 | may [be] used [prep] an | 12 |
|
| 9 | may [be] used [prep] an | 12 |
|
| 10 | may be use [prep] an | 12 |
|
