1. To make a snowman was fun.

(What is the part of speech of 'fun'? A noun of an adjective?)

2. I make it a rule to get up at five in the morning.

3.I regard it natural to study math every day.

(Are the two sentences grammatical?)

4. The boat rocked so much that I got sick.

5. The boat rocked so much that I got seasick.

(Does 'sick' mean 'seasick' in the sentence? Are both the same? Thank you for your help. Have a great weekdays.)

1 answer

1. fun = adjective

2 and 3 are fine.

4 and 5 are fine, too -- and yes, on a boat "sick" and "seasick" usually mean the same thing.