1
I need to bathe the dog.
Sign 'I', 'need', and then 'bathe' followed by 'dog'. When signing 'bathe', you can use a slightly larger scrubbing motion to emphasize the physical action of washing the pet.
2
It is time to bathe and go to bed.
Sign 'time', 'bathe', and then 'bed' or 'sleep'. The sign for 'bathe' clearly establishes the routine of washing up before resting for the night.
3
Did you bathe today?
Point to the person for 'you', sign 'bathe', and then 'today'. Remember to raise your eyebrows and tilt your head slightly forward to indicate a yes/no question.