If you commit a sin, say “Astaghfir-ullah (I ask Allah for forgiveness).”

If you are given a blessing, say, “Al-Hamdu-Lillaah (praise be to Allah).”

If some disaster befalls you, say, “Innaa Lillaahi wa innaa ilayhi raaji’oon (Truly, to Allah we belong and truly, to Him we shall return).”