Let's sort out the grammar issue that's the same in both these sentences, first of all. By 'park', do mean an outdoor leisure area, with trees and so on? If so, both of these sentences need an article. Have you studied about how to use articles? Remember that 'park' is a countable singular noun, so you can never say 'to park'. You have to say, 'to a park' or 'to the park' or 'to my local park', for example. Now for the tenses: 1. "I went to the park today" is fine. You might say this when you are at home in the evening. A family member says "Where did you go today?" and you could answer "I went to the park today". This is an example of the past simple tense. No problem there. 2. "I go to the park today" would be a strange thing to say. It is grammatically acceptable, but very unusual. [The only time you could say this is if you are reading from strict timetable where you have to go a different location every day, and the event scheduled for today will be a visit to the park. This seems unlikely]. It's hard to see what you mean by "I go to the park today". If a native English speaker heard or saw this statement, we would not fully understand it. This is because the time is not clear. What idea do you have in mind when you write "I go to the park today" ? When are you saying this? Is it BEFORE your trip to the park? If so, you would need to use a future tense: "I'm going to the park today" or "I'm going to go to the park today". Or if you've just made this decision, you could also say "I'll go to the park today". Or are you on your way to the park? If you meet a friend while you are walking to the park, you could say "I'm going to the park". Finally, if you say this AFTER your trip to the park, you'll need to use a tense which shows that this activity was in the past. You either use a present perfect "I've been to the park today" or the past simple, as in your sentence above. I hope that all makes sense.

Hi Irene, only the 2nd one is correct. go - present went- past In the sentence "I went to THE park today" it is something you did earlier in the day so you would use the past "went".

No, only the second one is correct to describe an action in the past. Plus, you need to add “the” before “park.”

Su.Ki. : It's also not polite to demand immediate reply. First, I'm not a native speaker and I need time to digest the responses. Second, I'm not a heavy Internet user. Thus, it's reasonable for me to notice the messages after a few hours. Lastly, I did give the reply by thumbing up or marking it as the best response.

Irene: Please do respond to the answers you receive. It's really not very polite to ask a question and then ignore the people who take the trouble to help you.