Equal comparison

tantum…quantum = as much as, as far as

Tantum prodire volandōquantum aciē possent oculi servare = They advanced as far as eyes might be able to keep them in sight.

tantus(a, um)…quantus(a, um) = as great as

Tantus erat amor Didonis quantus amor Aeneae erat = The love of Dido was as great as the love of Aeneas was.

tam…quam = as (adjective) as

Priamus est tam vetus quam Anchises = Priam is as old as Anchises.

tot…quot = as many as

Habebo tot canēs quot servōs = I will have as many dogs as slaves.