Could you please help me with English grammar? Thanks a lot!!!!?

Question

1. When do I use the words "gonna", "wanna", "gotta"?

2. When do I use "I used to", "I am used to"?

3. I was in/at a/the hospital.

4. I call/called this Aug. is/was an incredible month.

5. They haven't still found out/didn't still find out the reason.

6. She doesn't remember exactly how many times she has to/had to see the doctor.

Answer 1

  You never use those words on number one. They are slang terms. They aren't actually words.

Answer 2

1.  Technically, never.  They're all contractions/slang/dialect.  Individually:

"Gonna": I am going to ...

"Wanna": Do you want to ...?

"Gotta": I have to ...

2. "I used to":  I used to have a fancy car.  Past tense, indicating that you no longer have the car.

"I am used to": I am used to having servants.  Present tense, but indicating that the servants are no longer available.  Alternatively, "I am used to the pain."  Indicating that you are able to withstand the pain you are currently experiencing.

3.a) "I was in the hospital": you were personally in the hospital, probably for treatment.

3.b) "I was at the hospital": you were present at the hospital, but for reasons unspecified.  Could be treatment, could be visiting.

3.c) "I was in a hospital": I would think this is a case of (3.a)

3.d) "I was at a hospital": ditto (3.b).

In both cases (3.c) and (3.d) you are deliberately not specifying _which_ hospital is involved.  In cases (3.a) and (3.b) there is an implicit assumption that the person you're speaking with is aware of which hospital you mean.

4) This one is a bit messy.  I'll enter the ones that make sense to me.

"I call Aug. an incredible month." - Present tense.  You are calling August an incredible month at the moment you're speaking.

"I called Aug. an incredible month." - Past tense.  You called August an incredible month some time ago.

"This Aug. was an incredible month." - Past tense.  Statement that August was incredible, not that you are saying -- or have said -- that it was incredible.

"This Aug. is an incredible month." - Personally, I wouldn't use this phrase.  Until August is over, can you really characterize it?  Instead, I would say "This Aug. has been an incredible month."  The implication being that the month isn't over yet.

5) I'll have to rephrase some of these.

"They still haven't found out the reason." - The reason for a particular occurrence has not yet been determined.  Could be used as a question as well as a statement.

"They didn't find out the reason." - Implying that the search for the reason has stopped.

"They still didn't find out the reason." - Implying that there were two searches for the reason, separated in time, and the second search also failed or was stopped without finding the reason.

6) "She doesn't remember exactly how many times she had to see the doctor." - Past tense.  "She" fails to remember the number of times the doctor was seen.

"She doesn't remember exactly how many times she has to see the doctor." - Present/Future tense.  "She" knows that she needs to see the doctor again, but not how many times.

Hopefully Helpful!