how would i use a punnett square to explain how a dominant allele masks the presence of a recessive allele

bc its dominant its stronger then recessive

Explanation:

An allele is considered dominant when it masks the expression of the recessive trait in a heterozygous genotype. When you are homozygous for a recessive allele, the phenotype expressed is the recessive trait. If you are heterozygous, one of each, the dominant trait is expressed.