Sentence:  The three conjugations are distinguished principally by the ending of the <WSD>supine</WSD>. In the first conjugation the <WSD>supine</WSD> ends in "at", as: "tala" speak "talat" spoken. In the second conjugation the <WSD>supine</WSD> ends in "t" after a consonant, as: "köpa" buy "köpt" bought. In the third conjugation the <WSD>supine</WSD> ends in "it", as: "taga" take "tagit" taken. 
Meaning of the word marked with <WSD> tags:  In Swedish: a verb form that combines with an inflection of (ha) to form the present perfect and pluperfect tenses.