Common mistakes
The root begins with و. In the present it drops out entirely: وَصَلَ becomes يَصِلُ, and the imperative is simply صِلْ.
يَوْصِلُ → يَصِلُ Present: heأَوْصِلُ → أَصِلُ Present: Iيَوْصِلُونَ → يَصِلُونَ Present: they (m.)تَوْصِلِينَ → تَصِلِينَ Present: you (f.)