| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | be followed up by [noun] | 11 |
|
| 2 | be followed up [prep] [noun] | 9 |
|
| 3 | be followed up [prep] [noun pl] | 7 |
|
| 4 | be followed up [prep] [noun sg] | 6 |
|
