(~s, striving)
Note: The past tense is either 'strove' or '~d', and the past participle is either '~n' or '~d'.
If you ~ to do something or ~ for something, you make a great effort to do it or get it.
He ~s hard to keep himself very fit...
Mr Annan said the region must now ~ for economic development as well as peace.
VERB: V to-inf, V for n