(idiomatic) Before one can perform a complicated task, one has to learn how to perform more simple tasks. / Used other than figuratively or idiomatically: see learn, walk, before, run.

Alternative letter-case form of I before E, except after C

Alternative form of the darkest hour is just before the dawn

Alternative form of there is nothing new under the sun

(orthography, mnemonic) In English words that contain the letters I and E together, the I tends to come before the E (ie), except in cases when the two are preceded by the letter C, in which case the E comes before the I (cei).

(colloquial) Consider the consequences of your actions before you end up in trouble.

(idiomatic) To break new ground.

past participle of boldly go where no man has gone before

simple past tense of boldly go where no man has gone before

present participle of boldly go where no man has gone before