It is an imperative sentence, giving a command.
"It had to come by horse" is a declarative sentence. A declarative sentence is a type of sentence that makes a statement or expresses an opinion. In this sentence, the subject is "it," the verb is "had to come," and the method of transportation is specified as "by horse."
"there come"
He made a kind gesture by holding the door open for the elderly woman.
A open sentence is an equation with one or more variables is an open sentence.
A value that satisfies an open sentence is called a solution or a root of the open sentence.
Fantasy, RPG, and open world
Another type of an open sentence
We wouldn't be able to keep the food pantry open without the altruism of the kind people of this city.
"Open" is a verb in the sentence, "Tell Maxwell to open the door."
It depends on what kind of adverb it is. For example:frequency adverbs come before the main verb but after the be verb - He is always late. He always comes late.adverbs of manner usually come at the end of a sentence - She dances awkwardly.
He asked her to open the door.(indirect sentence) He asked her:"Please, open the door" (direct sentence)
An expression has no equal sign but an open sentence does Ex:2+4=6 open sentence Ex:2x5 Expression