Difficult Parts InThings About Learning English.

"Parts" isn't wrong, but "things" is more natural here.

The first partthing is singular and plural.

Alternatively: "First of all, there's singular and plural."
And then you might go on: "second of all... third of all... fourth of all..." so on and so forth.

That is too difficult to remember, even for young people whose memory ability isies are very strong.

When talking about someone's ability to remember things, we just say "memory".

The second part is thething is parts of speech.

The third partthing is synonyms.

The fourth partthing is vocabulary.

The sixth partthing is listening.

The seventh partthing is speaking.

I can only speak basic English, slowly and with a Chinese accent, aleven though I have been learning to speak for almost four years.

When in the middle of the sentence, "even though" might be a little more natural here. There's a very slight difference between how I'd use "although" and how I'd use "even though", and it has to do with how it relates to the other clause. "Even though" feels stronger, and has a meaning similar to "in spite of the fact that", while "although" is weaker and feels more like we are presenting an exception to what has been stated.

"I mostly stopped drinking coffee, even though I love it so much."
"I mostly stopped drinking coffee, although I'll still have a decaf every once in a while."
"I don't like the cold, even though I spend so much time in the mountains."
"I don't like the cold, although I do like cold drinks."

Difficult Parts Inof Learning English.

Although your sentence is not grammatically incorrect, "of" sounds more natural than "in" in my opinion.

Alternatively, you can write "Difficulties of Learning English". Of course, that would require you to change "first part", "second part", etc. to "first difficulty", "second difficulty", etc., but I think "difficulties" is more preferable to "difficult parts".

The first part is the singular and plural (forms).

Alternatively, you can write "The first part is singulars and plurals." This refers to singular and plural words, rather than the singular and plural forms.

Most words havefollow the same rule, but there are many exceptions for other words.

That isey are too difficult to remember, even for young people whose memory ability is very strong.

"That" would refer to the fact that exceptions exist. Conversely, using "they" would refer to the exceptions themselves.

The second part is the parts of speech.

Alternatively, you can write "The second part is part of speech" (without the "the"), which refers to the concept of parts of speech as a whole, rather than the individual parts of speech.

I often don’t know which one is the most appropriate in a specificgiven context.

The sixfifth part is listening.

It’s easy to understand English teachers, but it’s very difficult to understand non - -English teachers.

You can omit the second "it's" for brevity.

The sevenixth part is speaking.