grind on

verb

1. intr, adverb to move further relentlessly

   the enemy's invasion ground slowly on

Example Sentences

Is it OK if I pick you up and grind on you?’

From Los Angeles Times

Why do the wars in Ukraine and Gaza grind on, ferociously, relentlessly, with no end in sight and the combatants no closer to victory, as they define it, than they have ever been?

From Slate

As negotiations between institutions and students grind on, many demonstrators - and their outside supporters - are convinced that what they see as heavy-handed police tactics will help keep the movement going.

From BBC

Some have already claimed victory, even as the protests grind on.

From BBC

The next few days could reveal whether the war will come to a halt, at least for a while, or whether the bloody fighting will grind on.

From Slate