הוא כבר לא עובד בערב, ולכן הוא יכול לבוא איתנו לשיעור.

כבר לא is the standard Hebrew way to say no longer or not anymore.

• כבר = already
• לא = not

But together, כבר לא does not usually mean already not in natural English. It means that something used to be true, but now it is not true anymore.

So:

• הוא כבר לא עובד בערב = He doesn’t work in the evening anymore / He no longer works in the evening

This is a very common Hebrew pattern.

This is a very common confusion for learners.

• כבר לא = no longer / not anymore
• עדיין לא = not yet

Compare:

• הוא כבר לא עובד בערב = He no longer works in the evening
• הוא עדיין לא עובד בערב = He still doesn’t work in the evening / He has not started working in the evening yet

So כבר לא means something stopped being true, while עדיין לא means something has not happened yet.

Hebrew uses the present tense here because it is describing a current habit or ongoing situation.

• עובד = works / is working

In this sentence, it does not mean he is working right this second. It means that, as a general rule, he works evenings—or in this case, he no longer does.

So הוא כבר לא עובד בערב is like saying:

• He doesn’t work evenings anymore
• He no longer works in the evening

This is very normal Hebrew usage.

בערב is made of:

• ב־ = in / at
• ערב = evening

So בערב means in the evening or sometimes in the evenings, depending on context.

In this sentence, because the verb describes a general routine, English often translates it more naturally as:

• in the evening
• in the evenings
• sometimes simply at night, if the context is loose

But the most direct meaning is in the evening.

ולכן means and therefore, and so, or simply therefore.

It is built from:

• ו־ = and
• לכן = therefore / thus

So the sentence structure is:

• He no longer works in the evening, and therefore he can come...

Comparison:

• לכן = therefore
• ולכן = and therefore
• אז = so / then

ולכן sounds a bit more formal or explicitly logical than אז.
All are possible in different contexts, but ולכן is very natural here.

Hebrew often repeats the subject when starting a new clause, especially after a connector like ולכן.

So:

• הוא כבר לא עובד בערב, ולכן הוא יכול...

is very natural.

In English, we also usually repeat the subject:

• He no longer works in the evening, so he can come...

Could Hebrew omit the second הוא sometimes? In some contexts, yes—but repeating it is clearer and more standard here.

יכול לבוא means can come or is able to come.

• יכול = can / is able to
• לבוא = to come

So the structure is:

• יכול + infinitive
• can + do something

Examples:

• הוא יכול לבוא = He can come
• היא יכולה לבוא = She can come
• הם יכולים לבוא = They can come

Notice that יכול changes to match the subject, but לבוא stays the same.

In Hebrew, prepositions often attach directly to pronoun endings instead of using a separate independent pronoun.

So for with, Hebrew commonly uses these forms:

• איתי = with me
• איתך = with you
• איתו = with him
• איתה = with her
• איתנו = with us

So:

• איתנו = with us

A learner may expect something like עם אנחנו, but that is not how Hebrew normally says it.

It can mean different things depending on context.

• שיעור can mean lesson, class, or sometimes lecture/session
• לשיעור means to the lesson / to a lesson / to class

A useful thing to know: in unvocalized Hebrew spelling, לשיעור can represent either:

• ל + שיעור = to a lesson
• ל + השיעור = to the lesson

Those two look the same in normal writing without vowel marks.

In this sentence, English would most naturally say:

• to class
• or to the lesson

depending on the situation.

Yes. Several words agree with the subject.

In the original sentence:

• הוא = he
• עובד = masculine singular
• יכול = masculine singular

If the subject were feminine:

• היא כבר לא עובדת בערב, ולכן היא יכולה לבוא איתנו לשיעור.
• She no longer works in the evening, so she can come with us to class.

If the subject were masculine plural:

• הם כבר לא עובדים בערב, ולכן הם יכולים לבוא איתנו לשיעור.
• They no longer work in the evening, so they can come with us to class.

So Hebrew agreement is something you need to watch closely in subjects, verbs, and words like יכול/יכולה/יכולים/יכולות.