| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | i [vb base] [be] [v-ing] | 2232 |
|
| 2 | i [be] [v-ing] on | 421 |
|
| 3 | [vb base] [be] [v-ing] on | 160 |
|
| 4 | i [vb base] [be] on | 113 |
|
| 5 | i [vb base] [v-ing] on | 35 |
|
