Infinitive vs gerund

1. Making a web page is easy for me.

2. It's easy for me making a web page.

3. To make a web page is easy for me.

4. It's easy for me to make a web page.

Which of the above sentences is not acceptable?

1. Watching TV is fun.
2. To watch TV is fun.
3. It is fun watching TV.
4. It is fun to watch TV.

All are grammatically sound, but #2 is unidiomatic.
#4 is probably the most natural.

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If "It is fun watching TV." is grammatically sound, why is the following sentence NOT acceptable?

It's easy for me making a Web page.

 

5 & 8: completely acceptable
7: grammatical, but unnatural
6: acceptable for informal use only, if correctly punctuated (add a comma after 'easy')

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Teo wrote:

1. Watching TV is fun. 2. To watch TV is fun. 3. It is fun watching TV. 4. It is fun to watch TV. All are grammatically sound, but #2 is unidiomatic. #4 is probably the most natural. [link]=  If "It is fun watching TV." is grammatically sound, why is the following sentence NOT acceptable? It's easy for me making a Web page.

The second one is correct. The infinitive can be a subject in a sentence.

Such as:

To speak English well isn't an easy job.

To talk with the president is a great pleasure. 

Teo wrote:

1. Getting up early is not easy.  OK 2. To get up early is not easy.  Not natural 3. It is not easy getting up early. (see below) 4. It is not easy to get up early. (see below) All can be acceptable, but 1 & 4 are the most natural. 2 is grammatically correct, but most people in conversations would use Ving to make a verbal noun in that case. 3 is a tough call--I would say this sentence with a slight pause, as in, "It's not easy, getting up early." Or, "It's hard, living away from your parents' house." [link]=

Hi Teo

Regarding sentences 3 and 4, I'd say there is a slight difference in meaning between them.

3. It is not easy getting up early. 
This suggests that "getting up early" is an activity that the speaker is currently doing -- i.e. I sense that the speaker (or someone the speaker knows) has been getting up early recently.

4. It is not easy to get up early.
To me, this is a statement of fact referring to a specific act.


Let's look at two different sentences:

3a.  It is not easy outliving your children. 
To me, this sentence suggests an activity and duration. Thus, it seems to refer to how emotionally difficult such a situation is. (In this case, the activity is emotional activity)

4a. It is not easy to oulive your children. 
To me, this sentence is (again) a more general statement of fact referring to a specific act.  Therefore, this sentence does not suggest emotional difficulty as strongly.  Instead, it seems to refer to how physically difficult the specific act is -- i.e. it's difficult simply due to the fact that the children are younger.

Please note that I've used the words such as  "suggest" and "seems" in my comments.  I don't see the differences as absolute.