Mark 13:33

Greek	βλέπετε ἀγρυπνεῖτε· οὐκ οἴδατε γὰρ πότε ὁplugin-autotooltip__default plugin-autotooltip_bigὁ, ἡ, τό greek Meaning: * The The definite article. Forms Singular Case Masculine Feminine Neuter Nominative ὁ ἡ τό Genitive τοῦ τῆς τοῦ Dative τῷ τῇ καιρός ἐστιν.plugin-autotooltip__default plugin-autotooltip_bigεἰμί greek εἰμί is the first person singular verb for “to be” (εἶναι [the infinitive form] = “to be”). It an irregular verb, and, like English, changes significantly between person and tense. For example εἰμί is the word for am and ἦν is the word for was, e.g.
ESV	Be on guard, keep awake. For you do not know when the time will come.
NIV	Be on guard! Be alert! You do not know when that time will come.
NLT	And since you don't know when that time will come, be on guard! Stay alert!
KJV	Take ye heed, watch and pray: for ye know not when the time is.

^{Mark 13:32 ← Mark 13:33 → Mark 13:34}