I will help (if/whose) I can.
I will help if I can.
I will call you (finally/once) I get home.
I will call you once I get home.
I like to to go the beach (whose/when) I'm in California.
I like to go to the beach when I'm in California.
I cook (while/who) he cleans.
I cook while he cleans.
First, stretched. Then, I filled my bike tires. (Once/finally), I went on a bike ride.
Finally, I went on a bike ride.
The flight was canceled (while/due to) storms in the east.
...due to storms in the east.
If I have a jacket, I'll be comfortable (as much as/even if) the museum is cold.
...I'll be comfortable even if the museum if cold.
I have to work on my birthday (by the time/unless) someone can cover for me.
I have to work on my birthday unless someone can cover for me.
On the weekend, I can sleep (even if/as much as) I want.
...I can sleep as much as I want.
I need to find someone (whoever/who) speaks English.
I need to find someone who speaks English.
They'll hire (whose/whoever) can use a cash register.
They'll hire whoever can use a cash register.
I have a friend (who/whose) house has a pool.
I have a friend whose house has a pool.
He wants to go swimming (although/in case) it's cold outside.
He wants to go swimming although it's cold outside.
You should keep an extinguisher in your kitchen (even if/in case) there's a fire.
...in case there's a fire.
I'm getting a new car soon (as long as/finally) I can afford it.
I'm getting a new car soon as long as I can afford it.
I can start saving money (next/now that) I have a good job.
I can start saving money now that I have a good job.
I need to know (by the time/whether or not) it will snow tomorrow.
I need to know whether or not it will snow tomorrow.
It will be past midnight (by the time/until) I get home.
It will be past midnight by the time I get home.
I'll do it (as soon as/first) I can.
I'll do it as soon as I can.
He quit (even if/due to) a toxic work environment.
He quit due to a toxic work environment.
He will graduate soon (as long as/unless) he fails a class.
He will graduate soon unless he fails a class.
He's saving money (so that/in case) he can pay off his credit card debt.
He's saving money so that he can pay off his credit card debt.
I would volunteer more (in case/if only) I had more free time.
I would volunteer more if only I had more free time.
Let's go camping (meanwhile/now that) the weather is nice.
Let's go camping now that the weather is nice.
The movie had started (next/by the time) we sat down.
The movie had started by the time we sat down.