Your sentence
הֵם+הִתְחַתְּנוּ+בשָׁנָה+שֶׁעָבְרָה.
Words in this sentence
הֵם
they (the third-person masculine plural personal pronoun, masculine plural of הוא (hu')); those, yon (the masculine plural distant demonstrative pronoun, masculine plural of הוא (hu')); are (a masculine plural present-tense copula, masculine plural of הוא (hu'))
Pronoun
שָׁנָה
year (the time it takes for the Earth to complete one revolution around the Sun); year (the time it takes for any planetary body to make one revolution around another body)
Feminine noun
עָבַר
to pass, to cross; to pass; to spend, to pass; to pass, to not fail a test; to move (change residence); to undergo, experience, be subjected to
Pa'al verb