For example: I choose - I chose They build - they built She swims - she swam It’s also important to make sure you use the right word for the past tense of the verb ‘to be’. Use ‘was ...

Present tense should still be used even if the research you are speaking of aged. Example: “ Clidemia heterophylla and Piperaceae musteum are both plants with ant domata, meaning that there is an ant ...