と[言「い」]わせれば => On the view of N1
Based/focused/depending on
例えば => for example; for instance ~ N3
~さえ…ば => if only; as long as ~ N3
Conditions (sufficient conditions)
と([思「おも」]う、[言「い」]う、[考「かんが」]える) => That A N4
Particles
ひとつまちがえば => Just (negligence) N3
Ability
~かとおもえば...も => no sooner than N1
Compare
と言う/と言っていた => you could say; one might say; I'd say ~ N5
かといえば => Although A is expected, B results N2
Contrast,Surprise
と言っている => To say that ... N3
Speaking
あえて~ば => If I dare to say, trying to find a way... N2
Suggestion
といえば…ぐらいのことだ => speaking of... just... N2
Respectful, humble
そういえば => Speaking of .., A by the way, A; N2
Considering, Concerning