Causative Clause

S + have + O + V₁
S + tobe + have-ing + O + V₁
eg :  

I have someone water the flower
I am having someone repair my car

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S + get + O + to + V₁
S + tobe + getting + O + to + V₁
eg :  

I get someone to water the flower
I am getting someone to repair my car

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S + have / get + O + V₃
eg :  

I have the flower watered
I get the flower watered