Common mistakes
The root begins with و. In the present it drops out entirely: وَصَلَ becomes يَصِلُ, and the imperative is simply صِلْ.
يَوْقَعُ → يَقَعُ Present: heأَوْقَعُ → أَقَعُ Present: Iيَوْقَعُونَ → يَقَعُونَ Present: they (m.)تَوْقَعِينَ → تَقَعِينَ Present: you (f.)