All verb tenses are formed using the
voice
mood
principal parts
infinitive

All verb tenses are formed using principal parts. That means the main verb, basically, because you have tenses like present simple, where there is only the principal part (for example, He plays), whereas there are also tenses like present perfect, which is built from auxiliary/helping verb + principal part (for example, He has played with his brother, where has is an auxiliary verb, and played is the principal part).

sure ! what about z ooom ?