be resolute

be in earnest stick at nothing

carry on carry over continue endure go on linger persevere prevail pursue recur remain

abide grind insist last obtain perseverate repeat strive

be stubborn follow through follow up go all the way go the limit hold on keep up leave no stone unturned perdure see through stick it out stick to guns tough it out

cease discontinue give up go halt leave stop

forget

quit