What is the difference between "should go" and "should get going"?
I read the two links below but I think they seem contradictory to me. The speakers are talking out of their personal usage, and this is perfectly fine. It's only an issue when their personal usage contradicts each other. If there are many speakers would use them in what seems contradictory to me, it could mean that there is no difference in Spoken English, but formal only.
So could you tell me the difference by both, explanation and giving example scenarios/sentences. Here are some suggested criteria to use for comparison I compiled from the two links, but you are encouraged to add modify whatever helps make a better answer.
- Urgency of what makes you get going/go (in other words, the reason)
- Strength/rudeness vs mildness/softness of the two constructs
- internal (i.e under your control)/external (i.e beyond your control)
Note: You may want to give a prelim answer and then update it from the comments in case you need some clarifications and that might be even better. I didn't give quotes to what seems contradictory because it would make the post long and also to be honest I am not confident that I get the difference clear after reading both. So I thought of starting from scratch. The links would help the reader make clearer answers I believe.