| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | be [adv prt] and [v-ing] [prep] | 52 |
|
| 2 | [modal v] be [adv prt] and [v-ing] | 27 |
|
| 3 | [modal v] be [adv prt] and [prep] | 6 |
|
