38.

[notletrest]

Can we say "spend time to do something?"Glad to listen to you.Thanks.

[euncu]

No. You should say "spend time doing something"

[Raymott]

Can we say "spend time to do something?"Glad to listen to you.Thanks.

Not usually.
You can use "take time", "make time" in this way. They mean pretty much the same.
"You should take [the] time to study more."
"You should make time to fit in what's necessary."


PS: Here are some spaces for you next post:------. You can use them between sentences.

[notletrest]

But we can say :spend effort, money to do.can't we?Thanks!

[Rover_KE]

But we can say: spend effort, money to do. Can't we? Thanks!

We don't say spend effort. We do say '...spend money to [buy the good things in life].'


Here are more spaces to use between your sentences:

Rover

[bertietheblue]

notletrest

I think it's clear that your not inserting a space after punctuation is becoming a bit of an irritant. This is a basic error so it's important that you get it right. Remember:

Word Punctuation Space Word

[birdeen's call]

To make it even clearer:
you.Thanks. <-- wrong
you. Thanks. <-- right