Grammar check for a 7-year-old: Is 'Orangutans climb trees very well.' correct?

Good job! The sentence Orangutans climb trees very well. is grammatically correct.

Here’s why, step by step:

1. Who or what? — "Orangutans" is the subject. It is plural (more than one).
2. What do they do? — "climb" is the verb. Because the subject is plural, we use the base form "climb" (not "climbs").
3. Where? — "trees" is what they climb; it is the object.
4. How? — "very well" tells us how they climb. It is an adverb phrase that describes the verb.

So the sentence means: Many orangutans are good at climbing trees.

Other correct ways to say it:

• An orangutan climbs trees very well. (talking about one orangutan)
• Orangutans are very good at climbing trees. (uses "good at" instead of "very well")

Try this little practice: Make a sentence like this about another animal. For example: "Monkeys swing on branches very quickly." Write one and I will check it!