English relies heavily on softening. A direct "no" that would be perfectly normal in another language can read as cold or even rude. These give you range.

Saying yes, warmly

  • "Absolutely."
  • "That works for me."
  • "Sounds good."
  • "Happy to."
  • "Sure, no problem."

Saying yes, with a condition

  • "Yes, as long as we can push the deadline."
  • "That should be fine — let me just check one thing."
  • "In principle, yes."

Saying no, softly

The pattern is usually: acknowledge, decline, offer something.

  • "I'd love to, but I'm tied up that evening."
  • "That won't be possible this week, unfortunately."
  • "I'm afraid I can't take that on right now."
  • "Not this time, but keep me in mind for the next one."

Saying no at work

Give a reason tied to capacity, not willingness. It is harder to argue with and does not sound personal.

  • "I'm at capacity until Thursday — could it wait?"
  • "I can do one of the two, not both. Which is more urgent?"

Not committing yet

  • "Let me get back to you on that."
  • "I'd need to check my calendar."
  • "Can I confirm tomorrow?"
"Let me get back to you" is one of the most useful phrases in professional English. It buys time without promising anything.

A word on "maybe"

Used as a soft no, "maybe" often reads as a genuine maybe to English speakers, and they will follow up. If you mean no, say a warm no.