Satyricon!

Advanced Latin (201, 301, 401)

• In the present tense, sum uses the stem "sï" to form the subjunctive, plus the present tense endings. Remember that the "ï" in "sï" will shorten for phonetic reasons.
  
  
• Other tenses of the subjunctive of sum form regularly:
  • imperfect: Take 2nd principal part (esse); lengthen the final "e". Add present system endings

 Paradigm for the Present Subjunctive System of SUM

present	imperfect
sim /sïmus	essem /essëmus
sïs/sïtis	essës/essëtis
sit /sint	esset / essent