| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | is to say [det] | 22 |
|
| 2 | is to say [adj] | 17 |
|
| 3 | is to say that | 11 |
|
| 4 | is to say that | 11 |
|
| 5 | is to say [num] | 5 |
|
