| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | is [verb] [prep] | 82405 |
|
| 2 | be base [prep] | 5738 |
|
| 3 | [be] base [prep] | 5738 |
|
| 4 | [is] base [prep] | 2308 |
|
