היא מסבירה טוב, ולכן אני מבין.

Because the subject is היא meaning she. In Hebrew present tense, the verb-like form agrees with the subject’s gender and number.

• מסביר = masculine singular
• מסבירה = feminine singular

So with היא, you use מסבירה.

It can sometimes be left out, but here it helps make the person clear.

A key difference from English is that Hebrew present-tense forms usually show gender and number, but not person. So מסבירה by itself could mean:

• she explains
• you explain if speaking to one female
• I explain if the speaker is female

Because of that, היא is very useful for clarity.

It is the Hebrew present tense form. In many cases, the same form can mean either:

• she explains
• she is explaining

Hebrew does not normally make the same sharp distinction English does between simple present and present progressive in this kind of sentence. The context tells you which is meant.

Because טוב here is functioning like well, not like the adjective good agreeing with a noun.

In Hebrew, words like טוב are often used adverbially in a fixed form, usually the masculine singular form. So:

• היא מסבירה טוב = She explains well

Even though היא is feminine, טוב does not change here.

Yes. היטב also means well, and it can sound a bit more formal or literary.

So both are possible:

• היא מסבירה טוב
• היא מסבירה היטב

In everyday speech, טוב is very common.

ולכן means and therefore, and so, or simply therefore/so depending on the context.

It is made of:

• ו־ = and
• לכן = therefore / so

So ולכן is literally and therefore.

מבין is the masculine singular present-tense form, matching a male speaker saying I understand.

With אני, the present-tense form still has to match the speaker’s gender:

• אני מבין = I understand, said by a male
• אני מבינה = I understand, said by a female

So this sentence sounds like it is being said by a man or boy.

You can sometimes leave it out if the context is very clear, but אני helps identify the person.

Like מסבירה, the form מבין does not by itself uniquely mean I. It could also mean:

• I understand if the speaker is male
• you understand to one male
• he understands

So אני removes ambiguity.

Because the object can be omitted when it is obvious from context.

In English, I understand can stand alone, and Hebrew works the same way here. The meaning is something like:

• I understand
• I understand it
• I understand what she is explaining

The missing object is understood from the situation, so Hebrew does not need to state it.

In careful writing, the comma is very natural because the sentence has two clauses:

• היא מסבירה טוב
• ולכן אני מבין

The comma marks the pause and the logical connection. In informal writing, people may sometimes omit it, but with the comma looks neat and standard.

Yes, Hebrew word order is somewhat flexible, but this version is very natural.

This sentence has a straightforward structure:

• היא מסבירה טוב = first statement
• ולכן אני מבין = result

You could also see small variations, such as leaving out the comma in informal writing. But the given order is clear, natural, and common.

A simple pronunciation guide is:

hi masbirá tov, velakhén ani mevin

A few notes:

• היא = hi
• מסבירה = mas-bi-RA
• ולכן = ve-la-KHEN
• מבין = me-VIN

The stress is usually on the last syllable in מסבירה, ולכן, and מבין.