He have a ice cream vs He has an ice cream

Some examples from the web:

• Well, forget cake and ice cream.
• Lisa said Ed made honey lavender ice cream.
• Juanita demanded ice cream for lunch.
• A prime minister that loves strawberry ice cream.
• Missed the ice-cream truck out there.
• I ate a bunch of ice cream earlier today.
• French vanilla ice cream and cough syrup.
• Only ice creams containing milk ingredients.
• ICE-CREAM VAN JINGLE PLAYS I'd also buy you a big fat massive ice cream...
• The kid said she wanted some ice cream. I thought she should have some ice cream.
• We had acquired some ice cream somehow, and we decided that it would be good to store the ice cream in his undergarments on his person.
• Not helped by the fact that the ice cream van was following us because we forgot to pay for the ice creams.
• By popular consensus, the best ice cream in my town can be found at this artisanal ice cream truck.
• Maybe I'll sell ice cream. I like ice cream.
• Maybe I'll sell ice cream. I like ice cream.
• And ice cream is ice cream.
• Anyway, so this physicist goes into an ice cream parlor every week orders an ice cream sundae for himself and offers one to the empty stool next to him.
• Stracciatella ice-cream is nothing but a plain ice-cream with chocolate chips.
• Maybe we should go for ice cream or something.
• Favorite ice cream, sleep habits, political leanings.

Some examples from the web:

• He has an ice cream maker?
• Anyway, so this physicist goes into an ice cream parlor every week orders an ice cream sundae for himself and offers one to the empty stool next to him.
• Look, there's an ice-cream truck outside.
• While I was there, an ice cream truck actually came through.
• It sounds like an ice cream.
• Rachel took me for an ice cream.
• That man can melt an ice cream truck.
• Korsak got to take Cameron to buy an ice cream.
• Well, they're not looking for an ice cream truck.
• I've never met an ice cream snob before.
• An ice cream and some doughnuts.
• I saw them shooting at an ice-cream truck.
• Even though the video store turned into an ice cream parlor.
• I wouldn't mind being run over by an ice cream van.
• And then you can choose an ice cream from the freezer.
• I was an ice cream truck driver.
• Buy me an ice cream to show your gratitude.
• I think it's like an ice-cream scooper, but for brains.
• Buster gives the kid an ice cream.
• I work at an ice cream parlor in Carbondale, Illinois.