Hi, francisco! "I stopped to smoke" means that I went down the street, then I stopped to light up my cigarette and get some harmful substances into my body because I don't want to smoke and walk simultaneously?

Gerunds: Gerunds are often used when actions are real, concrete, or completed. For example: I stopped smoking. (The smoking was real and happened until I stopped.) Infinitives: Infinitives are often used when actions are unreal, abstract, or future. For example: I stopped to smoke. (I was doing something else, and I stopped; the smoking had not happened yet.)