which term should I USE?

sunlight, not sunlights.

Both of your choices are correct.

There are several formulas for giving a polite command in informal conversation. Personally, I use the ones with could.

Please [command].
[Could / Can / Would] you please [command]?
[Could / Can / Would] you [command], please?

CJ

CalifJim Both of your choices are correct.

Really? I've never heard the phrase "please pull down the curtain" in my life! Is it an Americanism?

"Please close the curtains" would probably be my instinctive choice, but I can't say I'm confident about how universally this is used given that you okayed the previous example.

I'm assuming it's a curtain that closes by moving vertically downward. Maybe that's the problem. Are such things called shades? My home furnishings vocabulary may need tuning!

Jim, the shades are the things that roll up and down down. Blinds are the things with slats that you can raise and lower, but also change the angle of. Curtains are the things made of fabric that hand on either side of the window when open and can be pulled horizontally to close. I never know if drawing them is to open them or close them.

I'd say:

Open the curtains, close the c

OK. I'll try to remember that!
Thinking theatrically, however, pulling down the curtain might describe the act of an angry audience that had gone on a rampage after an especially bad performance, right? (Or a joyously enthralled audience hoping for a keepsake swatch - you never know these days!)

CJ

For added confusion, certainly in Britain at least, blind can mean shade (I don't know about elsewhere).

Jim: you're right about the theatrical definition of curtain.

Hi guys,

If I want to ask/tell a person to pull the curtain so the sunlights can get into the room, how should I say it?

Please draw the curtain???

Usually, there are two curtains rather than one. Thus, you'd use the plural.

'Draw' seems a little bit old-fashioned, although I say it sometimes. But

It's an interesting point. I've heard draw used for both directions. I think for many people, draw just means to change their state from one to the other.

Thank you.

Sunlight, that is.

But if I talked or written about the various types of sunlight like the beneficial ones and harmful ones (one example that comes to my mind is "UV" light that is what believe to be harmful to your health but I am guessing everything), then I can follow that up with the plural "sunlights" because I have introduced and differentiated the uncoun

Hi,

The word 'sunlights' sounds pretty odd in the plural form.

'Understandings' sounds reasonable, eg Mary and Tom had completely different understandings of the problem.

Best wishes, Clive