今日は電車に何回も乗ったって英語でなんて言うの？

It takes several trains to get to my destination. I have to get on a couple of different trains during the day. It takes a lot of trains to get to where I am going. I have to ride more than one train to get to where I am going. I rode several trains today. There isn't a single train going my way so I have to take a couple of trains. I have to take the train a lot during the day.

To explain that today you took the train many times, please refer to the suggestions exampled above. Probably best expressed as an exclamation if it was more than two.

"Today I took the train many times" and "I rode the train a lot today" To 'take' something is used when referring to, in this context, to use/ride. 'many times' can be used to refer to 3 or above, often when it is out of the ordinary of doing something multiple times you'd use 'Many times'.

"I must have taken the train a bazillion times today!" "I rode the train a bunch of times today." The first expression is very popular amongst people in the US. It is an exaggeration as to how many times you got on the train but it communicates to the person you are talking to how you felt because you had to ride the train so many times. The second expression is very similar to the first one but a bit more formal because you are saying "bunch" which is more than one.

If you took the train a lot of times today you could say you spent a lot of your day on the train. "So much of my day was spent on the train today, I had to travel to places that were quite a distance apart. If I see another train today, I'll scream!" -In this sentence, you are tired of taking the train so much so that you don't want to see a train, if you do you will get angry. Take a train/took a train "I'll take the train many times today." "Today, I took the train so many times."

Sometimes, because of work or different errands we need to take care of, we use public transportation multiple times in one day. One of the most common forms of transportation in many countries is the train. If we would like to express the idea of using a train more than once a day, there are a few expressions we may use: 1) I took the train many times today. 2) I took the train multiple times today. 3) I went on the train a few times today. Also, depending on the quantity of times, we use those different expressions in certain occasions: 1) many times = refers to a lot of different times we do something. 2) multiple times = can also be a lot, but usually not the same amount as "many". 3) few times = usually is used for three times but also can express a smaller number as well. It is still less than using the word "multiple".