If you are helping a child write this, follow these steps often taught in composition writing for primary school
It is tempting to hold their hand and physically guide the pencil. This creates dependency. Instead, offer verbal cues: "What sound does 'Dog' start with?" p1 english writing exercise
A P1 student must differentiate between a noun and a verb. They need to know that every sentence needs a "who" and a "do." If you are helping a child write this,