If the director (have) more money, he(choose) better actors. You (not like) the story if it (have) a happy ending.
If l (meet) Liam Hemsworth, l (not know) what to say to him.

If the director had more money, he would choose better actors.

You wouldn't like the story if it had a happy ending.

If I met Liam Hemsworth, I wouldn't know what to say to him.

If the director would have (have) more money, he chose (choose) better actors.

You wouldn't like (not like) the story if it had (have) a happy ending.

If I met (meet) Liam Hemsworth, I wouldn't know (not know) what to say to him.