Daily practice of english langagEnglish Practice Daily English Practice

"language" is misspelled. I removed it because "English" already means that. I capitalized "practice" because it's part of the title.

Daily practice of english langagEnglish Practice Daily English Practice

This is a more succinct title. If you wanted to keep your original title, correcting it would have been: "Daily Practice of the English Language" However, this sounds extremely formal, like the title of an academic book about English.

Today, I have practiced some English. Today, I practiced some English.

Today, I have practiced some English. Today, I practiced some English.

I (have) learned how to write the nationalities in English. I (have) learned how to write nationalities in English.

"I learned" if it completed in the past.

I have learned how to write the nationalities in English. I learned how to write nationalities in English.

How to write nationalities in general => no need for "the"

This classlesson wars about the nationalitiesy adjectives and the noun of the nationalitiey nouns. This lesson was about the nationality adjectives and nationality nouns.

This class wars about the nationalities adjectives and the noun of the nationalitie, in noun and adjective forms. This class was about nationalities, in noun and adjective forms.

A bit clearer this way

Even if Ithough I (already) knew a few of them, I didn't kneow all the rules. Even though I (already) knew a few of them, I didn't know all the rules.

Even if I knew a few, I didn't kneow all the rules. Even if I knew a few, I didn't know all the rules.

So, in definitive, Iely it was a good thing to practice. So, definitely it was good practice.

So, in definitiveoverall, Iit was a good thing to practice. So, overall, it was a good thing to practice.

"In definitive" isn't a phrase we would use. I gave one potential natural substitute