I can't do it if you don't help me 改为否定句 I can't do it____yo

I can't do it without your help.
How often does wang hai run?
He reads everyday an hour
These clips are very pressing.would you like to try them on?
Finally,they planed 20 more trees.

I can't do it (without) your (help). (已经是否定句了还怎么改？）
(How) (often) (does) Wang Hai run?
He reads (an) (hour) (every) (day).
These clips are very (pretty)? Would you like to try them on？ （不明白怎么把别针当成衣服一样穿....)
(Finally), they planned 20 more trees.

without help