| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | have sign up [prep] [noun] | 9 |
|
| 2 | [verb] sign up [prep] [noun prp] | 9 |
|
| 3 | [verb] signed up [prep] [noun] | 9 |
|
| 4 | [verb] sign up for [noun] | 8 |
|
| 5 | [vb base] sign up [prep] [noun] | 5 |
|
