"I use all 4 books to complete my exercises."
When I want to imply that I use whole of four books at one time to complete my exercises.
How could I say "I use both 4 books to complete my exercises "
or "I use either 4 books to complete my exercises " ?
Thanks so much!
"I use all 4 books to complete my exercises."
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Not "either" - that's only one of two.
Not "both" - that's two.
I use all four books to complete my exercises.
I'm not a teacher, but I write for a living. Please don't ask me about 2nd conditionals, but I'm a safe bet for what reads well in (American) English.