Most English words are regular, and most commonly used ones too. "the", "be", "are", "why", "can", "might", "life", etc. are all perfectly regular if you understand how to read english orthography (which uses character clusters and can't be read a letter at a time).
Infinite/finite regularly related, too - the reason the pronunciation of the finite cluster changes is due to stress differences (initial in- always takes the stress, and then the following syllable must be destressed). Note that the long vowel at the end comes back in the 4 syllable "infinitum", again due to regular stress rules.
Infinite/finite regularly related, too - the reason the pronunciation of the finite cluster changes is due to stress differences (initial in- always takes the stress, and then the following syllable must be destressed). Note that the long vowel at the end comes back in the 4 syllable "infinitum", again due to regular stress rules.