help with causative clauses

I'm having some trouble with breaking a causative clause into its parts of sentence. please help.for instance:I have her do my homework.what i have figured out is:I= subjectHave=verb (because when i change the tense have changes and not do)her= indirect object?do my homework= direct object/complement(a main imperative clause on its own) ?also in instances where the object(if its an object at all) is a third person singular, such as:i made the girl make me coffee. we do not add the present simple S to the verb( in this instance make), why is tha...Read more