In the following sentences is there a main verb and an auxiliary verb or a main verb only?
Chris is in Tokyo at the moment
I'me the boss here.
In both sentences, there is only one verb.
Chris is in Tokyo at the moment
I am the boss here.
Although to be is, indeed, an auxiliary verb, in sentences like this it is used as a main verb.
Similar example with to do:
What are you doing today?
Watch how to do is a main verb here , with to be an auxiliary
Both main. If you wanted the first sentence to include an auxiliary you'd have to say something like 'Chris is working in Tokyo at the moment'; there the 'is' is an auxiliary.
b