Can you use V-ます before から？


I was taught that you must use the plain form of a verb before から. Recently
I've noticed that I will use the ます form of verbs. Most often I'm saying
～がありますから instead of ～があるから。 I feel like it's not right but it comes out so
naturally. I'm worried that it seems natural because it's become a habit that
no one has ever corrected.

I know that you can use ～ですから to end a sentence, so is ～ますから also
grammatically correct?




No, at least not always.

**It is correct** to use 「～～ますから」 in stand-alone statements expressing a
reason-and-result or cause-and-effect relationship.

「[明日]{あす}また[来]{き} **ます** から、このパソコンはここに[置]{お}いておきますね。」"I am leaving this PC
here because I will come back tomorrow again."

**It is NOT correct, however,** to use 「～～ますから」 followed by 「です」 in an answer
stating a reason/cause to a question asking for such.

Person A:「なんでこういう[音楽]{おんがく}が[好]{す}きなの？」"Why do you like this kinda music?"

Person B:「[心]{こころ}が[落]{お}ち[着]{つ}き **ます** からです。」← **_Incorrect_**

Person B should have said 「心が落ち着くからです。」"Because it relaxes me."

