This root form (lemma) is used in 2 different forms in the NT: ἐπιβαρῆσαί (NAA····), ἐπιβαρῶ (SPA1··S).
It is glossed in 2 different ways: ‘to burden’, ‘I may_be burdening’.
OET 2COR 2:5 Greek word=ἐπιβαρῶ (epibarō) Morphology=SPA1··S English gloss=‘I may_be burdening’ SR GNT 2COR 2:5 word 13
OET 1TH 2:9 Greek word=ἐπιβαρῆσαί (epibaraʸsai) Morphology=NAA···· English gloss=‘to burden’ SR GNT 1TH 2:9 word 18
OET 2TH 3:8 Greek word=ἐπιβαρῆσαί (epibaraʸsai) Morphology=NAA···· English gloss=‘to burden’ SR GNT 2TH 3:8 word 21