| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | can [be] [vb pp] [v-ing] [adv prt] | 17 |
|
| 2 | can be [vb pp] [v-ing] [adv prt] | 17 |
|
| 3 | can [be] seen [v-ing] [adv prt] | 7 |
|
| 4 | can [be] [vb pp] [v-ing] down | 5 |
|
