Please anybody help with this Punnet square problem ?

Please help with following problem. I understand the basic formula but please confirm. ?: Three(3) antennae (T) are incompletely dominant to one(1) antenna(t). The hetrozygote has two(2) antennae. Predict the phenotype and genotype ratios of the follwing crosses. TT times tt, Tt times tt , and Tt times Tt.