彼らを助けるつもりですか。

they (usually male); them

indicates direct object of action; indicates subject of causative expression; indicates an area traversed; indicates time (period) over which action takes place; indicates point of departure or separation of action; indicates object of desire, like, hate, etc.

to help; to save; to rescue; to give relief to; to spare (life); to reinforce; to promote; to abet

intention; plan; conviction; belief

be; is

indicates a question (sometimes rhetorical); or; whether or not; some- (e.g. something, someone); indicates doubt, uncertainty, etc.; emphatic prefix; suffix forming adjectives or adverbs; in that way