Taught is in past tense, when you say he taught it means he has already done it
Answer:
infinitives: Jack likes <em><u>to eat</u></em> pizza, <em><u>to play</u></em> football, and <u><em>to read</em></u> comics.
gerunds: Jack likes <u><em>eating</em></u> pizza, <u>playing</u> football, and <u>reading</u> comics.
nouns: Jack likes <u><em>pizza</em></u>, <em><u>football</u></em>, and <em><u>comics</u></em>.
Explanation: