Than/as + pronoun + auxiliary
than/as + pronoun + auxiliary
A. When the same verb is required before and after than/as we can use an auxiliary for the second verb
I earn less than he does (less than he earns) The same tense need not be used in both clauses
He knows more than I did at his age
B. When the second clause consists only of than/as + I/we/you + verb, and there is no change of tense, it is usually possible to omit the verb
I’m not as old as you (are) He has more time than I/we (have) In formal English we keep I/we, as the pronoun is still considered to be the subject of the verb even though the verb has been omitted In informal English, however, me/us is more usual
He has more time than me They are richer than us
C. When than/as is followed by he/she/it + verb, we normally keep the verb You are stronger than he is
But we can drop the verb and use he/she/they in very formal English or him/her/them in very colloquial English.
These rules apply also to comparisons made with adverbs
I swim better than he does /better than him
They work harder than we do /harder than us
You can’t type as fast as I can /as fast as me
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