be sure of ing or that clause

[Darlene]

hello, guys
i'd like to know if the following sentences mean the same thing.

1] I'm sure i'll succeed.
2] I'm sure of success.
3] I'm sure of suceeding.
4] I'm sure to succeed.

i owe you guys a lot!!

[SithCloud]

hello, guys
i'd like to know if the following sentences mean the same thing.

1] I'm sure i'll succeed.
2] I'm sure of success.
3] I'm sure of suceeding.
4] I'm sure to succeed.

i owe you guys a lot!!

Well... to me it looks like

1) Somewhere in the future
2) A general statement
3) Succeeding in something at that time
4) Again a general statement

Then again, I'm not an English teacher :]