בטח יהיה בסדר אם נצא עכשיו; נראה שנגיע בזמן.

Here בטח means something like surely, probably, I’m sure, or it’ll be fine depending on tone.

In this sentence, it adds reassurance:
בטח יהיה בסדר = It’ll surely/probably be okay.

A learner should know that בטח is very common in spoken Hebrew and is often more conversational than a formal word like בוודאי.

Hebrew often uses an impersonal expression here.

יהיה בסדר literally looks like will be okay/fine, without stating a subject. In natural English, we usually add it:
It will be okay / It’ll be fine.

Hebrew does not always need an explicit subject in this kind of sentence. The masculine singular verb יהיה works as a general default form, almost like English it will be.

בסדר literally means in order:

• ב־ = in
• סדר = order

But in everyday Hebrew, בסדר usually means:

• okay
• fine
• all right

So יהיה בסדר is a very common phrase meaning it’ll be okay or things will work out.

Because in Hebrew, when אם means if and refers to a future situation, Hebrew normally uses the future tense in both parts.

So:

• אם נצא עכשיו = if we leave now

This is different from English, where we usually say:

• If we leave now, not if we will leave now

So this is a very important pattern:

• Hebrew: אם + future
• English: if + present

That makes אם נצא עכשיו completely normal Hebrew.

Both are possible, because לצאת basically means to go out, to go forth, or to leave depending on context.

In this sentence, נצא עכשיו most naturally means:

• we leave now
• we head out now

So although the core meaning is go out, English often translates it as leave when talking about departing in order to arrive somewhere.

Because Hebrew verbs already show the subject.

• נצא = we will leave
• נגיע = we will arrive

The we is built into the verb form, so אנחנו is usually unnecessary unless you want emphasis or contrast.

For example:

• נצא עכשיו = we’ll leave now
• אנחנו נצא עכשיו = we will leave now / we’re the ones leaving now

So omitting the pronoun is the normal choice.

In this sentence, נראה means it seems or it appears, not we will see.

This is a very common point of confusion because נראה can mean different things in different contexts.

Here:

• נראה שנגיע בזמן = It seems that we’ll arrive on time / Looks like we’ll arrive on time

This נראה is from the verb meaning to appear / seem.

By contrast, נראה can also mean we will see in other contexts, for example:

• מחר נראה = We’ll see tomorrow

So the context tells you which meaning is intended.

The ש־ means that.

So:

• נראה ש... = it seems that...
• נראה שנגיע בזמן = it seems that we’ll arrive on time

In English, that is often optional:
It seems (that) we’ll arrive on time.

In Hebrew, ש־ is very common in this structure and sounds natural here.

Here בזמן means on time.

So:

• נגיע בזמן = we’ll arrive on time

Literally, זמן means time, so בזמן is something like in time / on time, but in this sentence the natural English meaning is on time.

The semicolon links two closely related thoughts:

• בטח יהיה בסדר אם נצא עכשיו
• נראה שנגיע בזמן

It shows a pause stronger than a comma, but the second clause is still closely connected to the first.

The meaning is basically:

It’ll probably be okay if we leave now; it seems we’ll arrive on time.

In less formal writing, people might also use:

• a comma
• a dash
• or split it into two sentences

So the semicolon is mainly a punctuation choice, not a special grammar rule.