| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | follow up [noun] [prep] | 55 |
|
| 2 | follow up [noun sg] [prep] | 34 |
|
| 3 | follow up period [prep] | 7 |
|
| 4 | follow [adv] period [prep] | 6 |
|
| 5 | [vb base] up period [prep] | 6 |
|
| 6 | follow up period [prep] | 6 |
|
| 7 | [verb] up period [prep] | 6 |
|
