1. He tried to climb the tree.

2. He tried climbing the tree.

3. He wanted to climb the tree,so he did his best, but he couldn't climb the tree.

4. He climbed the tree to check whether he could stand on the thick branches to pick fruit.
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Does #1 mean #3? Does #2 mean #4?
In #1, he couldn't go up the tree.
In #2, he could go up the tree. Is that right?

1 and 2 do not indicate if he was successful or not.

3 and 4 are more specific, indicating success or the lack of it.

In sentence #1, "He tried to climb the tree," it simply means that he attempted to climb the tree. It does not provide any specific information about whether he was successful or not.

In sentence #2, "He tried climbing the tree," it also means that he attempted to climb the tree. Again, it does not explicitly mention whether he was successful in climbing the tree or not.

Both #1 and #2 do not provide information about the outcome of his climbing attempt. Therefore, it is not accurate to assume that #1 means #3 or #2 means #4.

In sentence #3, "He wanted to climb the tree, so he did his best, but he couldn't climb the tree," it explicitly states that he put in his best effort to climb the tree but was unable to do so. Here, it is clear that he was not successful in climbing the tree.

In sentence #4, "He climbed the tree to check whether he could stand on the thick branches to pick fruit," it suggests that he was able to climb the tree. The purpose of his climb was to check if he could stand on the thick branches to pick fruit. This sentence implies that he successfully climbed the tree.

In sentence #1, "He tried to climb the tree," it means that he attempted or made an effort to climb the tree. However, it doesn't provide any information about whether he succeeded or failed in his attempt. So, we can't conclude anything about the outcome of his attempt to climb the tree from this sentence alone.

In sentence #2, "He tried climbing the tree," it implies that he attempted to climb the tree, and it suggests that he was successful in his attempt. Using the verb "tried" followed by the gerund form of the verb "climbing" indicates that he made the effort and also achieved the desired outcome, which is reaching the top of the tree.

In sentence #3, "He wanted to climb the tree, so he did his best, but he couldn't climb the tree," it clarifies that despite his strong desire and best efforts, he was unable to climb the tree. This sentence expresses his intention, determination, and ultimately, his failure to achieve the desired outcome.

Sentence #4, "He climbed the tree to check whether he could stand on the thick branches to pick fruit," simply describes his action of climbing the tree for a specific purpose, which is to evaluate whether the branches are sturdy enough to support his weight while picking fruit. It does not provide any information about whether he succeeded or failed in climbing the tree.

Therefore, from the given sentences, we can infer the following:
- Sentence #1 does not necessarily mean the same thing as sentence #3 since it doesn't provide information about the outcome.
- Sentence #2 implies success in his attempt to climb the tree.
- Sentence #4 only describes his action without indicating success or failure.