three times as many books as
Ma sœur a trois fois plus de livres que moi.
My sister has three times as many books as I do.
Le professeur a trois fois plus de livres que moi.
The teacher has three times as many books as I do.
J'ai trois fois plus de livres que Tom.
I have three times as many books as Tom.
J’ai trois fois plus de livres que lui.
I have three times as many books as he does.