Present Perfect Tense & Simple Past Tense

1.  Present Perfect Tense (have/has + past participle) 

• Form:
• I have eaten, She has gone, We have finished.

• Use:
• Refers to past actions that are connected to the present. Often used when:
• The exact time is not mentioned
• The result still matters now
• The action has happened at some point in the past (unspecified time)

• Examples
• I have eaten breakfast. (You may still be full now)
• She has visited Japan. (In her life, at some time -- we don't say when)
• We've just finished the project. (The result affects the present)

 

     2. Simple Past Tense (verb + -ed or past form)

• Form:
• I ate, She went, We finished

• Use:
• Refer to completed actions that in the past usually with a specific time (even if it's implied)

• Examples:
• I ate breakfast at 8 a.m. (Specific time in the past)
• She visited Japan in 2020.
• We finished the project last week.