| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | may be obtain by [verb] | 30 |
|
| 2 | may be obtain [prep] [verb] | 30 |
|
| 3 | may be obtain [prep] [verb] | 30 |
|
| 4 | may be obtain [prep] [v-ing] | 30 |
|
| 5 | may be obtained [prep] [verb] | 30 |
|
| 6 | may be obtain by [verb] | 30 |
|
| 7 | may be obtain [prep] [verb] | 30 |
|
| 8 | may be obtain [prep] telephone | 10 |
|
| 9 | may be obtain [prep] telephoning | 10 |
|
