Can you help me with punctuation and spelling for this sentence.

We by windows to keep an eye on the wind. We also use them too keep heat in when it's cold outside

5 answers

We BUY windows to keep an eye on the wind. We also use them TO keep heat in when it's cold outside.
Should be:

"We buy windows to keep an eye on the wind. We also use them to keep heat in when it's cold outside."

If you're to really optimize it:

"We buy windows to keep an eye on the wind and to keep heat in when it's cold outside."

By is a preposition; buy is to purchase.

Too is 'overly' ("It is too hot"); to is a preposition used here to indicate an infinitive.

If the lack of a period at the end is intentional, there should be one (otherwise you made a typo).

The two sentences can be joined into one complex sentence with the conjunction 'and' as in the second example.
We by windows to keep an eye on the wind. We also use them too keep heat in when it's cold outside
Should be:
We buy windows to keep an eye on the wind. We also use them to keep heat in when it's cold outside.
P.S. We buy windows to keep an eye on the wind sounds a bit odd; let me know if that's not right
Thankya. :D
What type of noun is color... lol