Learn English – “He was too busy to work at a factory” – Is this sentence correct in grammar

"The boy was seen breaking the window"

... as snailboat recommended is more common, but not more correct. I believe "the boy was seen to break the window" would be grammatically correct.

Consider what happens if you swap "seen" with "known": "The boy was known to break the window." No problem there - that's a common way to say it.

That said, I would still prefer "breaking" over "to break". "The boy was seen breaking the window. He was known to break windows frequently."

Firstly, my initial answer would have been the same as yours, "I am too tired to go out".

However, while

"I am too tired going out"

does sound a little strange, it is possible. It implies that the speaker is already out, but would rather not be out.

Compare with

"I am too tired to go out"

which implies that going out is a future action. This usage indicates that the speaker is not going to go, or is very reluctant.