rằng and là for reported speech
Both function like that in reported speech; là is more colloquial.
The tense of the original statement is kept unchanged.
| Verb | Meaning | Example |
|---|---|---|
| nói | say / tell | nói rằng |
| bảo | tell / say (informal) | bảo là |
| cho biết | inform | cho biết là |
| nghĩ | think | nghĩ rằng |
| hy vọng | hope | hy vọng là |
The reported pronoun changes from the original utterance.