The -ing form in your example sentence is a present participle, indicating something which is currently ongoing. So, they have orders which currently are coming from all over the world. The come form would work too, though it does not come with the implication that those orders are appearing now. It implies instead that generally orders do appear from all over the world. Similarly with the ...
I will be coming tomorrow. The act of "coming" here is taking a long time from the speaker/writer's point of view. One example where this would apply is if by "coming" the speaker/writer means the entire process of planning, packing, lining up travel, and actually traveling for a vacation. I will come tomorrow.
Do native speakers use present continuous when talking about timetables? Can I use "is coming" in my sentence? That film comes/is coming to the local cinema next week. Do you want to see...
In that sense, when you think about dropping someone off on your way home, you would use "coming" and "going" based on whether the two of your are travelling to or from a place.
Further to Peter's comprehensive answer "Do you come here often?" completes the question in a continuous form, as opposed to the more obviously present "Are you coming?" "Do you come with me?" is certainly archaic and if it was used today it would seem strange, but at a guess it sounded comfortable for about 1,000 years until early Victorian dates.
The word "coming" can also be used in several other senses, not all of which would have a parallel or related form using "coming up" "I'm coming up" could also be used when the destination is on a hill, but that would be significantly less common. The phrase "coming up" can also be sued to mean "happening soon, as in The Fourth of July is ...
There are at least a couple of reasons why "the year is coming to an end" is the idiomatic choice. Firstly, "an end" better describes to the process or generality of something concluding, rather than pointing to a specific, singular conclusion.
If a person is supposed to come but not showing up for the last two days, then which sentence is grammatically correct: He has not been coming for the last two days. or He is not coming for the...
