| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | is [adv] [conj] [prep] | 217 |
|
| 2 | [be] mainly [conj] [prep] | 14 |
|
| 3 | be mainly [conj] [prep] | 14 |
|
| 4 | [is] mainly [conj] [prep] | 9 |
|
