okresy warunkowe

Bardzo proszę o sprawdzenie poprawności zdań:

I'll give it to you if you must have one.
I would give it to you if you must had one.
I would have given it to you if you must had had one.

If my boy-friend Cyril doesn't object, I shall join you.
If my boy-friend Cyril didn't object I should join you.
If my boy-friend Cyril hadn't object I should have joined you.

I shall have to buy thick coat if the weather gets colder
I should have to buy thick coat if the weather got colder
I should have to have bought thick coat if the weather had got colder.

If he buys a house for 2000$ and sells it for 6000$, he'll make a good profit.
If he bought a house for 2000$ and sold it for 6000$, he would make a good profit.
If he had bought a house for 2000$ and had sold it for 6000$, he would have made a good profit.

I'll give it to you if you must have one.
I would give it to you if you HAD TO HAVE one.
I would have given it to you if you HAD HAD TO HAVE one.

If my boy-friend Cyril doesn't object, I shall join you. [tutaj wg mnie shall = will]
If my boy-friend Cyril didn't object I WOULD join you.
If my boy-friend Cyril hadn't object I WOULD have joined you.

I shall have to buy A thick coat if the weather gets colder
I WOULD have to buy A thick coat if the weather got colder
I WOULD have HAD to BUY A thick coat if the weather had got colder.

If he buys a house for 2000$ and sells it for 6000$, he'll make a good profit.
If he bought a house for 2000$ and sold it for 6000$, he would make a good profit.
If he had bought a house for 2000$ and had sold it for 6000$, he would have made a good profit.