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.

Now he ‘is’ sticky. Sentences that describe something that’s already happened and use words like ‘was’, are in the past tense. He ‘was’ sticky. Every verb has a past, present and ...

In your scientific paper, use verb tenses (past, present ... we observed a shift in . . . In communication, every detail counts. Although your focus should be on conveying your message through ...

The voice of the verb is distinct from its tense. Don't confuse the passive voice with the past ... it puts the emphasis on "more and more people.") Finally, make every effort to avoid the Academic ...