I didn't know about your problem so I didn't offer to help, (have) If I'd known about your problem, ...................................................................... to help.

If you applied now, there's a good chance you would get the job. (to) Were ........................................................................... , there's a good chance you would get the job.

If I ___all this homework to do now, I would have gone out with my friends.(have)

Ten years ago, people would have complained at seeing this film, seen Had ..........................................................................................., they would have complained.

Marie is unhappy because she gave up her career when she got married.

She___by train yesterday if she could drive.

Tom is not going to come to dinner tomorrow because you insulted him yesterday. (If)

I'd love to travel the world if I didn't have to pay off my mortgage.  Were ...................................................................................... my mortgage, I'd love to travel the world.

Without this new diet, Henry would never have lost so much weight. (it) Had ..................................................................... this new diet, Henry would never have lost so much weight.

Unless the plans change, we'll see you on the 19th . (no/not) Provided ..................................................................the plans, we'll see you on the 19th.

Drivers are allowed to park here if they display a local resident permit, (condition)  Drivers are allowed to park here ........................................................................ they display a local resident permit.