| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | be used for [noun sg] | 237 |
|
| 2 | be used for [noun pl] | 89 |
|
| 3 | be used for [n mass] | 12 |
|
| 4 | be used for communication | 7 |
|
| 5 | be used for [noun prp] | 6 |
|
| 6 | be used for research | 5 |
|
| 7 | be used for research | 5 |
|
| 8 | be used for communication | 5 |
|
