They______(go)to delhi in simple present tense?
They go to Delhi.
As They are plural subject we can use go and goes
Because in the simple present tense, When a subject is singular then we use verb+s/es however when subject is plural we do not use s/es with the verb.
He goes to Delhi. ( Go+es )
We go to Delhi ( We is plural so there is no s/es with the verb )