A calculateion mistake A calculation mistake

FA few weeks ago, I started a one-week training program. A few weeks ago, I started a one-week training program.

FA few weeks ago, I started a one-week training program. A few weeks ago, I started a one-week training program.

If you’re discussing the past, then you need to use a past-tense of “start.”

In thatFor one week I willas jogging one hour each day. For one week I was jogging one hour each day.

In that week, I willas jogging one hour each day. In that week, I was jogging one hour each day.

Past-tense

But there just a little problem about location. But there just a little problem about location.

Your sentence is good! You can also say "But the location was not ideal"; or "But the location was a little problematic."

B, but there justwas a little problem about the location. , but there was a little problem about the location.

You can’t really start a sentence with “but.” You have to use a comma (although not always, but typically). “Just” sounds funny in the sentence. Not adding “the” before “location” sounds very wrong. “The” tells us that you’re referring to a specific place.

I neehad to takecatch a bus go to thate sports center, which needtakes 45 minutes to an hour. I had to catch a bus to the sports center, which takes 45 minutes to an hour.

I neehad to take a bus to go to that sport center, which needstook 45 minutes to an hour. I had to take a bus to go to that sport center, which took 45 minutes to an hour.

Still past-tense. No need for “need” in that sentence. Although, you could say “I needed to take a bus” but “had” sounds more natural.

In total will bit would take around 2 hours. In total it would take around 2 hours.

In total will beit took around 2 hours. In total it took around 2 hours.

Past-tense.

This week I decided to jogging at my house. This week I decided to jog at my house.

This week I decided to jogging at my house. This week I decided to jog at my house.

“Jog at my house” or “to go jogging at my house.”

I was thinking I can save a biggood deal of time. I was thinking I can save a good deal of time.

I was thinking I canthat I could save a biggreat deal of time. I was thinking that I could save a great deal of time.

Past-tense. Also “great deal of time” sounds more natural than “big deal of time.”

But the truth isn’t what I was thinking at all. But the truth isn’t what I was thinking at all.

Or, "But the reality wasn't what I expected."

ButHowever, the truth iwasn’t what I was thinking at all. However, the truth wasn’t what I was thinking at all.

Not sure what you mean by “the truth”… what truth? The “reality” perhaps?

Because I don’'t needhave to take the bus hence, I get up late. Because I don't have to take the bus, I get up late.

BecausSince I doidn’t need to take the bus hence, I get up late., I woke up later than usual. Since I didn’t need to take the bus, I woke up later than usual.

(1) Typically we never start a sentence with “because.” (2) add punctuation. Try to look up English punctuation rules! (3) you could say “I got up,” but it’s casual speak. “Woke up” is more specific. (4) The “usual” part adds more specification.

I spend a longer time in eating breakfast, showering… I spend a longer time eating breakfast, showering…

I spendt a longer time in eating breakfast, and shower…ing. I spent a longer time eating breakfast and showering.

You could also say “taking a shower.” Also, you want to keep the flow of the words the same. If you start a sentence with “eating” and then you add more activities, make sure you end them with “-ing.” Example: “I ate and took a shower” is correct and so is “I was eat*ing* and tak*ing* a shower” or “She is cooking and crying at the same time.” Hope that makes sense.

In a real comparison gity, going to tohe sports center willould have been more effective. In reality, going to the sports center would have been more effective.

In a realBy comparison, go toing to the sport center will beis more effective. By comparison, going to the sport center is more effective.

You could also say “going to the sports center would have been more effective.”