You can achieve anything if you put your mind to it.

A hyperbolic isometry f has two (distinct) fixed points on ∂ℋ.

to ship the tiller or rudder

Verbs with י for the first radical, often drop it in the future, imperative, and infinitive of Kal, to which last they postfix ת (לקח to take, follows this form), and in Niph. and Hiph. they change י into ו.