| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | be followed up by a | 12 |
|
| 2 | be followed up for a | 9 |
|
| 3 | be followed up [prep] a | 8 |
|
| 4 | was followed up [prep] a | 8 |
|
| 5 | were followed up [prep] a | 7 |
|
| 6 | be followed up with a | 6 |
|
