kindly 1
You are very kindly to spare me so much of your time.
You are very kind to spare me so much of your time. She is always very kindly and helpful.
She is always very kind and helpful. Kindly is nearly always used as an adverb: They’ve kindly offered to lend me their car while they’re away.’ ‘Would you kindly sit down and stop being a nuisance.’ 2
I wonder if you would kindly correct my mistakes.
I wonder if you could possibly correct my mistakes. Would you kindly open the door?
Would you mind opening the door, please? Kindly is used to mean ‘please’ only in formal styles. When used inappropriately, it can sound sarcastic or even express anger: ‘Would you kindly keep your hands to yourself.’ knock 1
The woman got angry and knocked him.
The women got angry and hit him. He thinks that someone knocked him on the head.
He thinks that someone hit him on the head. When someone tries to hurt another person, they hit them: ‘He still had a bruise from the time she had hit him.’ 2
When Sandra knocked the door, he was washing his face.
When Sandra knocked on the door, he was washing his face. knock on/at a door, window etc: ‘In future, don’t come in without knocking on the door.’ know 1
I ran downstairs to know what was happening.
I ran downstairs to find out what was happening. Two police officers visited him to know where he had been on the night of the
murder.
Two police officers visited him to find out where he had been on the night of the murder, find out = get information about something that you want to know: ‘We need to find out why these cars have stopped selling.’