I am not sure what you mean but we do use the expression "single -handedly" to mean you did something alone.
For example "He crossed the Atlantic single-handedly in his sailing boat".
I think you can also say "single handed" in this sentence.
29 สิงหาคม 2015
3
1
0
thank you for taking time out to answer my question
29 สิงหาคม 2015
0
0
0
Single handed doesn't mean you have one hand. If that's what you trying to say than it's not the right word.