| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | which [vb base] [to-vb] a | 52 |
|
| 2 | [Wh det] [vb base] [to-vb] a | 42 |
|
| 3 | [Wh det] [vb base] [to-vb] an | 10 |
|
| 4 | [Wh det] seem [to-vb] a | 8 |
|
| 5 | [Wh det] appear [to-vb] a | 7 |
|
| 6 | [Wh det] tend [to-vb] a | 6 |
|
| 7 | [Wh det] [vb base] to provide a | 6 |
|
| 8 | [Wh det] [vb base] to have a | 6 |
|
