Present tense:
* Je vais: This is the most common way to say "I go" in the present tense. It literally translates to "I go."
* J'y vais: This is used when you are going to a specific place that has already been mentioned. It literally translates to "I go there."
Other tenses:
* Je suis allé(e): I went (masculine/feminine) - past participle
* J'irai: I will go - future tense
* J'allais: I was going - imperfect tense
Examples:
* Je vais au cinéma. (I am going to the cinema.)
* J'y vais demain. (I'm going there tomorrow.)
* Je suis allé(e) au magasin. (I went to the store.)
* J'irai à la plage cet été. (I will go to the beach this summer.)
Remember to choose the correct conjugation based on the tense you need.