rich895
"Anyone who has access to do X should also have access to do Y"
I was writing an email and I stumbled on this.
"Anyone" is singular, so I used 'has' for the first part. The second part I cannot use 'has'(or should I use 'has'), so used 'have'. Is this grammatically correct. What abt parallelism? has/have
If not correct , pls explain the correct usage. Thanks
I'm happy to help with this.

Both of these verbs are correct. Both are singular ---- the verb "has" is singular, and the verb "should have" is also singular.
When we use an auxiliary verb, a "helping" verb" with a main verb in the present tense, the main verb takes its infinitive form, and the auxiliary verb reflects the "number" of the verb (i.e. whether the verb is singular or plural.)
He gives ...
He will give ...
He does give ...
He can give ...
He might give ...
He should give ...In the first, the verb "gives" is singular. In all the others, the main verb is in the infinitive form, "give", and the correct number (i.e. singular) is reflected in the auxiliary verb (most of the auxiliary verbs don't change --- the only one that does change with number is do/does.)
Does all this make sense?
Mike