go along

1.  Move on, proceed, as in She was going along, singing a little song. This expression is also used as an imperative meaning "be off" or "get away from here," as in The police ordered them to go along. [First half of 1500s]
2.  Also, go along with. Cooperate, acquiesce, agree. For example, Don't worry about enough votes--we'll go along, or I'll go along with you on that issue. [c. 1600]
3.  Accompany someone, as in I'll go along with you until we reach the gate. [c. 1600] This usage gave rise to the phrase go along for the ride, meaning "to accompany someone but without playing an active part," as in I won't be allowed to vote at this meeting so I'm just going along for the ride.

The verb has 3 meanings:

Meaning #1: cooperate or pretend to cooperate
  Synonym: play along

Meaning #2: continue a certain state, condition, or activity
  Synonyms: continue, go on, proceed, keep

Meaning #3: pass by, as of time
  Synonyms: elapse, lapse, pass, slip by, glide by, slip away, go by, slide by