Not having read the 'lost english series story', it's difficult to determine the main characters. But it could feature an older person who remembers the old ways of speaking English and tries to pass on that knowledge to the younger generation. There might also be a young protagonist who is curious about the strange and forgotten English words they find in old books or from listening to their grandparents, and they embark on a journey to discover more about this lost part of the English language.
I have no idea who the main characters are without reading the 'lost english series story'. However, it's possible that there are linguists as main characters, as they are often the ones interested in the evolution and loss of language. Or perhaps ordinary people who stumble upon forgotten English words and phrases and their lives get changed because of it.
Since we don't have much information about the 'lost girl series story', it's difficult to determine the main characters. But surely, the lost girl herself would be a main character. There might also be someone who is searching for her, like a family member or a friend.
I'm not sure specifically as I haven't read it. It could be about lost or forgotten elements of the English language presented in a story form, perhaps things like archaic words, idioms that are no longer commonly used, or old English dialects.
If it's a more complex story, there could be characters from the girls' past that play important roles. For example, a memory of a family member could be a driving force for one of the girls. Or perhaps there is a mysterious figure that the girls keep encountering during their lost journey, and this figure's identity and motives are slowly revealed as the story progresses.
The main character is surely the lost boy. But there might also be his family members, like his parents who are probably worried about him. There could also be some strangers he meets during his time being lost, such as a kind old man or a helpful child who tries to assist him in finding his way back.
Maybe there's a pet or an animal companion. If the boy is lost in a forest, he could have a dog with him at the start that helps him in some ways. Or he might meet an animal in the wild that he forms a bond with while trying to find his way back, like a wise old owl that gives him some clues or a friendly deer that leads him to a safe place.
In the 'the lost city story', the main characters could be a diverse group. There might be a lead archaeologist who has dedicated their life to finding lost civilizations. Alongside them, there could be a team of assistants, each with their own skills, like a geologist to study the land around the lost city, and a historian to piece together the story of the city from old records. There could also be native inhabitants of the area where the lost city is rumored to be. Some might be helpful, guiding the outsiders to the location, while others might be wary, fearing that the discovery will disrupt their way of life.
It depends on the specific 'lost boys story'. In some cases, the main characters could be a group of orphan boys. In other versions, it might be boys who have run away from home.
Since we don't have much information, it's difficult to say for sure. But it could be the lost stars themselves.
Since I don't know the exact 'lost in the dark story', it's hard to say. But it could be a lone adventurer who gets lost, or a group of friends who find themselves in a dark and dangerous situation.
Since I don't know the exact 'lost in the stars story', I can't say for sure. But it could be an astronaut, a stargazer, or some sort of space traveler.