| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb past] [be] [v-ing] for year | 19 |
|
| 2 | [be] [v-ing] for many year | 14 |
|
| 3 | [vb past] [be] [v-ing] for many | 8 |
|
| 4 | [vb past] [be] for many year | 7 |
|
