i wanna put in offers for houses, and want to add these escape clauses to my purchase contract:

subject to inspection
subject to financing
subject to appraisal

how exactly do i do this?
can anyone please send me some standard contracts with these clauses? i’d appreciate it.

these are pretty standard clauses. if you are working with a realtor, he/she will have them already. If not, look up the local board of realtors and see if they have contracts available for download.