אין לי ספק לגבי התוצאה.

אין is the word used to express non-existence / absence in the present tense, often equivalent to there is no / I don’t have.

So:

אין לי ספק = I have no doubt
Literally: There is no doubt to me

By contrast, לא is the regular word for not, used to negate verbs and other statements, for example:

אני לא יודע = I don’t know

So in this sentence, אין is correct because Hebrew is expressing that no doubt exists for the speaker.

Because Hebrew often expresses having with a structure like there is / there isn’t + to someone.

So:

• יש לי = I have
• אין לי = I don’t have

Here, לי literally means to me.

So:

אין לי ספק
Literally: There is no doubt to me
Natural English: I have no doubt

This is a very common Hebrew pattern, and it is one of the first big differences from English.

ספק means doubt.

In this sentence:

אין לי ספק = I have no doubt

It is a very common noun in both spoken and written Hebrew.

You may also see it in other expressions such as:

• יש לי ספקות = I have doubts
• ללא ספק = without a doubt
• אין ספק = there is no doubt

Because ספק is being used here in an indefinite sense, while התוצאה is definite.

• ספק = a doubt / doubt
• התוצאה = the result

So the sentence means:

I have no doubt about the result

not

I have no doubt about a result

In Hebrew, the definite article the is usually added as the prefix ה־.

לגבי means regarding, concerning, or about.

So:

לגבי התוצאה = regarding the result / about the result

It is a very common preposition, especially in neutral or slightly formal Hebrew. It works well in speech and writing.

In this sentence, it connects the doubt to the topic:

אין לי ספק לגבי התוצאה
= I have no doubt regarding the result

Yes, אין לי ספק בתוצאה is possible, but it can sound a bit different depending on context.

• לגבי התוצאה = about / regarding the result
• בתוצאה = literally in the result, but in many contexts it can mean about the result or in the result itself

For a learner, לגבי התוצאה is the safer and clearer choice if you mean about the result in a general sense.

A rough comparison:

• אין לי ספק לגבי התוצאה = I have no doubt about the result
• אין לי ספק בתוצאה can sound more like I have no doubt in the result or I’m certain of the result

Both may be understood, but לגבי is especially straightforward here.

This word order is very natural in Hebrew.

The sentence is built in three parts:

1. אין לי = I don’t have
2. ספק = doubt
3. לגבי התוצאה = about the result

So the structure is:

אין לי + noun + prepositional phrase

This is the standard way to say it.

You might sometimes hear other word orders for emphasis, but the version you have is the normal, neutral one.

התוצאה is pronounced roughly ha-totsa'ah.

Breakdown:

• ה־ = the
• תוצאה = result / outcome

So:

התוצאה = the result

The ה־ before it is the definite article. In normal pronunciation, it sounds like ha- here.

A rough pronunciation of the full sentence is:

Ein li safek legabey ha-totsa'ah.

It sounds neutral to slightly formal, but still very natural.

אין לי ספק is a common phrase in everyday Hebrew as well as in more formal speech and writing.

לגבי also sounds neutral and standard. It is not overly stiff, but it is a bit more polished than very casual alternatives you might hear in conversation.

So overall, this sentence is perfectly natural in many settings:

• conversation
• news
• writing
• professional discussion

You keep אין and ספק, and change the attached preposition:

• אין לי ספק = I have no doubt
• אין לך ספק = you have no doubt (to a man)
• אין לך ספק = you have no doubt (to a woman)
• אין לו ספק = he has no doubt
• אין לה ספק = she has no doubt
• אין לנו ספק = we have no doubt
• אין להם ספק = they have no doubt (masculine / mixed)
• אין להן ספק = they have no doubt (feminine)

Then you can add the same ending:

לגבי התוצאה = about the result

For example:

אין לנו ספק לגבי התוצאה = We have no doubt about the result