| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [noun] [Wh pn] may be [v-ing] [prep] | 10 |
|
| 2 | [noun pl] [Wh pn] may be [v-ing] [prep] | 8 |
|
| 3 | [Wh pn] may [adv] be [v-ing] [prep] | 5 |
|
