What is the difference between I wonder and I was wondering

I was wondering is a polite idiom.

Was is not really a tense, i was wondering is a polite way to express i wonder

When wonder means "amazed", "confused", the common usage is as follows:

1) Use in conjunction with AT.

wonder at your allowing her to do such a thing.

I'm surprised you allowed her to do that.

i don't wonder at his words.

I'm not surprised by what he said.

2) Followed by the phrase about, which means "to ......Confused".

wonder about my future.I'm confused about my future.

i was wondering about that.I was curious about that.

The difference between wonder and be wondering usage is:Different tenses, different tones and contexts expressed; Acts as an ingredient for different noises

When expressing a request, be wondering is more polite and tactful than wonder;

be wondering is the continuous tense; Wonder is a general tense and can also be used as a noun

Specifically:

1. wonder：/ˈwʌndə(r)/，v.Wondering, curious, pondering

I don't know if it is(for asking questions or politely making requests).

Confused, (right...)feel uneasy; Be surprised, feel amazed;

n.Surprised, amazed；Wonders, miracles; Surprising things, incredible things;

Note: When wonder is used as a verb, it can be used as a predicate or a non-predicate; When used as a noun, it can be used as the subject, object, and predicate of the sentence.

Example sentence: i wonder you don't feel it too.

I'm surprised you don't feel it either.

i wonder if you can help me.(Indicates Request).

I wonder if you can help me?

no wonder my brother wasn't feeling well.(noun).

No wonder my brother didn't feel well at the time.

2.be wondering: Want to know (very tactful). Example sentence:

i am wonderng if you could give me some advise.

I was wondering if you could give me some advice.

i am wonderng if you could spare some time for the question.

I wonder if you can find time to ask this question.

i am wonderng if you could talk about the current affairs.

I was wondering if you could talk about current events.

There isn't much difference in meaning, but wonder is skeptical, general.

Be wondering is the Righteous Tomb in Kyuma Qi suspicion, emphasizing that now is doubting.

Wonder usage.

1) When followed by a question word + infinitive, it means "I want to judge filial piety and know".

2) When followed by an infinitive phrase, it means "surprised; ......I was surprised to talk about it."

3) When followed by an object clause guided by if or whether, it indicates a euphemistic request or question.

4) Followed by at or about indicates that the manuscript is "surprised".