I know something very important

Hello, native English speakers,
I have a question.

I think (a) would be used. but how about the others?
(a) I know something important.
(b) I know something very important.
(c) I know something really important.
(d) I know something truly important.
(e) I know something exclusively important.
(f) I know something definitely important.
(g) I know something absolutely important.
(h) I know something completely important.
(i) I know something perfectly important.
(j) I know something pretty important.
(k) I know something quite important.
(l) I know something rather important.

Thanks in advance.

Hirashin

hirashin said:

Hello, native English speakers,
(e) I know something exclusively important.
(i) I know something perfectly important.
(h) I know something completely important.

Click to expand...

Not those three.

(f) I know something definitely important.
(g) I know something absolutely important.

Click to expand...

You could maybe use those two, but they sound a bit odd to me.

The rest are fine.

I agree with Paul on the first three, but this sounds okay:

I know something (that is) definitely/absolutely important (to/for the outcome of our plan).

johnnyG said:

I agree with Paul on the first three, but this sounds okay:

I know something (that is) definitely/absolutely important (to/for the outcome of our plan).

Click to expand...

I stand by my 'odd' feelz Although I should note that it is normal for native speakers to disagree on the language they natively speak.

Thanks, PaulTB and johnnyG.