| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [prep] [det] is [prep] | 152 |
|
| 2 | [prep] doing [det] is | 64 |
|
| 3 | [prep] doing [det] [prep] | 52 |
|
| 4 | doing [det] is [prep] | 11 |
|
