Find esse (Verb) in the Latin Online Dictionary with English meanings, all fabulous forms & inflections and a conjugation table: sum, es, est, sumus, estis, sunt.
{"1_epl50":{"state":{"baobab":{"parentNode":{"context":{"genInfo":{"prefix":"1_epl5w01-0-1"},"ui":"desktop","service":"web","reqid":"1725635156256898-4493961261533760564-balancer-l7leveler-kubr-yp-klg-185-BAL","fast":{"name":"branding"}}}}},"type":"branding"},"1_epl51":{"state":{"visibleItems":[{"level":1,"content":[{"rows":[{"colspans":[3],"cells":[{"type":"table-cell","content":[{"type":"text","text":"Infinitivus praesentis"}]}],"type":"table-row"},{"colspans":[3],"cells":[{"type":"table-cell","content":[{"type":"text","text":"esse — быть"}]}],"type":"table-row"},{"colspans":[3],"cells":[{"type":"table-cell","content":[{"type":"text","text":"Praesens indicativi"}]}],"type":"table-row"},{"cells":[{"type":"table-cell","no_line_break":true,"content":[{"type":"text","text":"Лицо"}]},{"type":"table-cell","no_line_break":true,"content":[{"type":"text","text":"Singularis"}]},{"type":"table-cell","no_line_break":true,"content":[{"type":"text","text":"Pluralis"}]}],"type":"table-row"},{"cells":[{"type":"table-cell","no_line_break":true,"content":[{"type":"text","text":"1."}]},{"type":"table-cell","content":[{"type":"text","text":"sum — я есть"}]},{"type":"table-cell","content":[{"type":"text","text":"sumus — мы есть"}]}],"type":"table-row"},{"cells":[{"type":"table-cell","no_line_break":true,"content":[{"type":"text","text":"2."}]},{"type":"table-cell","content":[{"type":"text","text":"es — ты есть"}]},{"type":"table-cell","content":[{"type":"text","text":"estis — вы есть"}]}],"type":"table-row"},{"cells":[{"type":"table-cell","no_line_break":true,"content":[{"type":"text","text":"3."}]},{"type":"table-cell","content":[{"type":"text","text":"est — он, она, оно есть"}]},{"type":"table-cell","content":[{"type":"text","text":"sunt — они есть"}]}],"type":"table-row"},{"colspans":[3],"cells":[{"type":"table-cell","content":[{"type":"text","text":"Imperativus"}]}],"type":"table-row"},{"colspans":[1,1],"cells":[{"type":"table-cell","content":[{"type":"text","text":"es! — будь!"}]},{"type":"table-cell","content":[{"type":"text","text":"este! — будьте!"}]}],"type":"table-row"}],"type":"table","visible_count":3}]}],"path":{"items":[{"text":"lingust.ru"}],"favicon":{"index":0,"pageNumber":0,"size":"m","entry":"1"}},"url":"https://lingust.ru/latina/lectiones-latinae/lectio6","favicon":{"index":0,"pageNumber":0,"size":"m","entry":"1"},"headline":"Глагол esse - быть в латинском языке.","titleLines":1,"shouldWrapFold":false,"shouldOpenAllCollapsers":false,"disableReadMore":false,"hasA11yHeader":false,"siteSource":{"url":"https://lingust.ru/latina/lectiones-latinae/lectio6","title":{"title":"Глагол esse - быть в латинском языке.","lines":1},"subtitle":{"path":{"items":[{"text":"lingust.ru"}],"favicon":{"index":0,"pageNumber":0,"size":"m","entry":"1"}}}},"footer":{"report":{"featureInfo":{"type":"Факт","subtype":"Расширенный факт","fact":{"type":"Расширенный факт","isText":true}},"feature":"","checkBoxLabels":[]},"addonBefore":"Kaynaktan alınan bilgiyle göre oluşturuldu"},"baobab":{"parentNode":{"context":{"genInfo":{"prefix":"1_epl5w02-0-1"},"ui":"desktop","service":"web","reqid":"1725635156256898-4493961261533760564-balancer-l7leveler-kubr-yp-klg-185-BAL","fast":{"name":"rich_fact"}}}}},"type":"rich_fact"}}
Clipped conjugations with /s-/, such as sum itself, occurred alongside more conservative equivalents with /es-/ in early Latin, such as the archaic esum.