You use come to talk about movement towards the place where you are, or towards a place where you have been or will be.
Come and look.
Eleanor had come to visit her.
You must come and see me about it.
The past tense of come is came. The -ed participle is come.
The children came along the beach towards me.
A ship had just come in from Turkey.
‘come’ or ‘go’?
When you are talking about movement away from the place where you are, you use go, not ‘come’. You also use go when you are describing movement that is neither towards you nor away from you.
You use here with come and there with go.
Alfredo, come over here.
I still go there all the time.
If you invite someone to accompany you somewhere, you usually use come, not ‘go’.
Will you come with me to the hospital?
Come and meet Roger.
In some situations, you can use come or go to show indirectly whether you will be in a place that you are referring to. For example, if you say ‘Are you going to John’s party?', you are not showing whether you yourself are going to the party. However, if you say ‘Are you coming to John’s party?', you are showing that you will definitely be there.
You use come and with another verb to say that someone visits you or moves towards you in order to do something.
Come and see me next time you're in London.
She would come and hold his hand.
In informal American English you can leave out and in sentences like these.
He has not had the courage to come look us in the eye.
used to mean ‘become’
Come is sometimes used to mean become.
One of my buttons came undone.
Remember that some dreams come true.
➜ See become