Compete (verb) to try to be more successful than someone or something else. When you take part in a competition you compete.
Compete is a regular verb: Past simple competed / Past participle competed
"It's difficult for small shops to compete against large supermarkets." - Present Simple
"My grandfather competed in the 1964 Olympics." - Past Simple
"You are a great player. Have you ever competed in a golf tournament?" - Past Participle
Competition: "I came second in my high school art competition"
Competitive: "My sister is more competitive than me. She loves to win and hates to lose."
Competitively: "That new shop has a lot of competitively priced goods."
Now decide which form should be used in these sentences: