| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb -s] [vb infin] to be | 243 |
|
| 2 | does [vb infin] to be | 242 |
|
| 3 | [vb -s] seem to be | 130 |
|
| 4 | [vb -s] appear to be | 40 |
|
| 5 | [vb -s] need to be | 26 |
|
| 6 | [vb -s] tend to be | 16 |
|
| 7 | [vb -s] have to be | 14 |
|
