The bBeautiful gGirl

Titles are usually in title case

Her name iwas Malinda.

You started in the past tense, so you should keep with the past tense since this story is happening in the past.

Malinda iwas 7 years old.

She always said "I want to become a translator." / She always said she wanted to become a translator

The first is a direct quote, and in that case you can use the pronouns and tense of the original statement, but it needs to be in quotation marks. Otherwise, you can use an indirect quote, without quotation marks, but then it has to match the tense of your sentence.

When mever Malinda entered into a school.,

Names are capitalised, and this isn't a full sentence on its own so I removed the full stop.

"a school" makes it sound like she's going into many different schools randomly, whereas "school" makes it sound like the school she regularly attends.

Sshe always wentered to to the library to search(read / search for books) about languages.

One day Malinda becammade a new friend; hims name was Alex.

Alex was helping Malinda until sher became a translator.

One day Alex came and tolsaid to Malinda c"Can you marry me ?"

"told" is usually not used for questions. It's usually used for factual statements or commands.

And sShe said yes.

It's considered poor practice to start a sentence with "And" in English writing - people do it all the time in speech however.

Their names are Sawsan and Badr.

One day, there was a beautiful girl.

Her name iwas Malinda.

Since you used "was" in the previous sentence, you have to keep using it so everything is in past tense.

Malinda is 7seven years old.

In stories, it's common to write out numbers instead of using the number itself.

She always said Ishe wanted to become a translator.

"Wanted" is the past tense.

When mMalinda entered into a school.,

Malinda needs to be capitalized because it's a name. You can also say "started" instead of "entered."

Sshe always wentered to library to srearchd about languages.

I combined this sentence with the previous sentence because it flows better. "Went" is better than "entered" in this context because it emphasizes that her destination was the library rather than focusing on the fact that she went into it.

One day, Malinda becammade a new friend him name, Alex.

Malinda didn't "become" anything, she "made" a friend. She technically became friends with something, but English uses "make" for friends.

Alex was helped Malinda until sher finally became a translator.

I added "finally" here to show all the hard work they put into this.

One day, Alex came and told toasked Malinda can youto marry me him?

If you want to make this dialogue, you can say: "One day, Alex came and asked Malinda, "Can you marry me?"

And sShe said yes.

There's a debate about whether to start sentences with "and" or not. Since this is an official story, it's probably better not to start a sentence with it.

Now, Alex and Malinda have 2two children.,

Ttheir names are Sawsan and Badr.

I combined this with the previous sentence and changed "name" to "names" to show that there are more than one name.

One day, there was a beautiful girl.

Malinda iwas 7 years old.

She always said Isaid that she always wanted to become a translator.

When mMalinda wentered into a school to school, she always went into the library to learn about languages.

I'd combine this sentence (fragment) with the next sentence to form one sentence.

"To enter a school" for me means that she has enrolled in the school. I'm assuming you want to say that every day that she went to school, she would go to the library sometime during or after school to read about other languages.

One day, Malinda became a new friend himfriends with a boy named Alex.

There's multiple ways you can write this as well:

Example: "One day, Malinda met a boy named Alex and became friends with him."

Alex was helped Malinda until sher became a translator.

Alternatively, I would word it as: "Alex helped Malinda [to] fulfill her dreams of becoming a translator."

One day, Alex came and told toasked Malinda can: "Would you marry me ?"

In English, when proposing to someone we ask "Would you marry me?"

And sShe said , "yes."

Now, Alex and Malinda have 2 children.

Their names are Sawsan and Badr.

Once day there was a beautiful girl.

"Once" is more commonly used in this context.

Her name iwas Malinda.

You are talking about something that happened in the past.

Malinda is 7 years old.

We say that someone is X years OLD when we are talking about their age.

She always said "I want to become a translator".

When mMalinda enterrolled into a school.

"Enrolled" is when you enter a school/university or any program.

She always wentered to to the library to research about languages.

"Research" is more correct when talking about studying.

One day Malinda becammade a new friend him. His name is Alex.

When someone has a new friend, we say they MADE a new friend.

Alex was helping Malinda until sher became a translator.

One day Alex came and told to Malinda can"Will you marry me ?"

You don't need the "to" in scenarios like this. We use "can" if someone is able to do something, and "Will" when someone chooses to do something.

Their names are Sawsan and Badr.

Plural for "name" is "names", since we are talking about 2 children.

Once day there was a beautiful girl.

Her name iwas Malinda.

Malinda iwas 7 years.

She always said Ishe wanted to become a translator.

When mMalinda entered into a school.,

Sshe always entered tohe library to search about languages.

One day Malinda became a new friend himfriends with a boy named Alex.

Alex was helped Malinda until sher became a translator.

One day Alex came and told toasked Malinda can, will you marry me ?

Their names are Sawsan and Badr.

One day there was a beautiful girl.

Her name iwas Malinda.

She always said , "I want to become a translator."

When mMalinda entered into a school.,

This clause and the one the sentence following it should be combined into one sentence.

S...she always entervisited to library to slearchn more about languages.

One day Malinda becammade a new friend him named Alex.

Alex was helped Malinda until her becaome a translator.

Some other suggestions:

Alex supported Malinda in reaching her goal/dream of becoming a translator.
Alex helped Malinda in reach her goal/dream of becoming a translator.

One day Alex came and told to Malinda cand asked, "Will you marry me ?"

Their names are Sawsan and Badr.