The sentence talks about an event that happened in the past, and we need the simple past tense. "Went" is the correct past form of "go."
- "Go" is present tense, and "will go" is future tense, both of which are incorrect for talking about a past event.
- "Am going" indicates present continuous tense, which is also not suitable for referring to a past event. When referring to events in the past, use the simple past tense. The sentence should be "I went," not "I go" or "I will go."