| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | i [vb base] [been] [v-ing] | 2165 |
|
| 2 | [vb base] [been] [v-ing] [prep] | 1995 |
|
| 3 | i [vb base] [been] [prep] | 743 |
|
| 4 | i [vb base] [v-ing] [prep] | 491 |
|
| 5 | i [been] [v-ing] [prep] | 5 |
|
