| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | is [det] research | 15 |
|
| 2 | been [det] research | 13 |
|
| 3 | be little research | 10 |
|
| 4 | be much research | 7 |
|
| 5 | be that research | 7 |
|
| 6 | be some research | 7 |
|
| 7 | be more research | 6 |
|
