About the use of the subject in a sentence

English as a Second Language English for Beginners
1

Hi,

“He’s very generous and he buys her fantastic presents”.

Could I also say “he’s very generous and buys her fantastic presents” (using “he” only once)?

Thanks a lot for your help. Greetings.

PS: Is it correct to say “using” or I should say “BY using”? Thanks once again.

2

yes, either of the sentences is fine.

With regard to by using/using, it depends on the context.