Sum Esse Imperfect Tense. Then add the personal endings. The latin word sum is perhaps among the best known of all the latin verbs and it is among the hardest to learn.
The stem for the imperfect indicative is er. Sum is the present indicative tense of the verb esse meaning to be as with many other living and dead languages esse is one of the oldest verb forms in latin one of the most frequently used of the verbs and one of the most irregular verbs in latin and related languages. Think of the way the imperfect is done in a regular conjugation bam bas bat etc.
Then add the personal endings.
Give the imperfect forms of the verb sum esse. The latin word sum is perhaps among the best known of all the latin verbs and it is among the hardest to learn. Sum is the present indicative tense of the verb esse meaning to be as with many other living and dead languages esse is one of the oldest verb forms in latin one of the most frequently used of the verbs and one of the most irregular verbs in latin and related languages. Sum is the only truly irregular form.