One of the most common mix-ups you’ll see is “passed tense.” This is incorrect—you’re talking about things that happened in the past , so it’s the past tense.

Most linguists agree that English has only a past and a present, or you might say a past and a non-past tense. So I went there yesterday is past tense and past time, but I see the dentist tomorrow ...

One’s tense will vary depending on what one is trying to convey within their paper or section of their paper. For example, the tense may change between the methods section and the discussion section.