By having this information in present tense, you are showing that you believe that this research is correct. Present tense should still be used even if the research you are speaking of aged. Example: ...

Some languages like Mandarin Chinese don’t have verb tenses but express time in different ways. When writing, it’s important to use the correct form of a verb and to use it consistently.

In particular, this can manifest as incorrect use of verb tenses, making it difficult for patients to talk about past or future events, significantly complicating everyday communication.

In particular, this can manifest as incorrect use of verb tenses, making it difficult for patients to talk about past or future events, significantly complicating everyday communication.