| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | may be [verb] [prep] [adj] | 805 |
|
| 2 | [modal v] be obtain [prep] [adj] | 54 |
|
| 3 | [vb mod] be obtain [prep] [adj] | 54 |
|
| 4 | may be obtain [prep] [adj] | 27 |
|
| 5 | may [be] obtain [prep] [adj] | 15 |
|
| 6 | may be obtain [prep] [adj] | 15 |
|
| 7 | may be obtain [prep] [adj] | 15 |
|
| 8 | may [be] obtain [prep] [adj] | 15 |
|
| 9 | may be obtain [prep] [adj] | 15 |
|
