1. The boy was hungry that he ate a lot.

2. The boy was hungry that he ate much.
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Are both the same? Which one is commonly used?

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3. I smelled the fish becoming bad.
4. I tasted the bread becoming bad.
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Are these sentences grammatical?

The boy was so hunger that he ate a lot.

2. is not very good.

Both 3 and 4 are grammatical.

1. The boy was so hungry that he ate a lot.

2. The boy was so hungry that he ate much.

Both sentences convey the same idea of the boy being very hungry and eating a large amount of food. However, the first sentence is more commonly used and grammatically correct. "Ate a lot" is a more natural way of expressing eating a large quantity of food than "ate much."

3. I smelled the fish becoming bad.
4. I tasted the bread becoming bad.

Both sentences are grammatically incorrect. The main issue is with the verbs "smelled" and "tasted." In their current form, they are in the past tense and do not match with the present participle "becoming." A better way to express these sentences would be:

3. I smelled the fish that had become bad.
4. I tasted the bread that had become bad.

By using the past participle "had become," the sentences now convey the idea that the fish and bread were already bad at the time they were smelled and tasted.