| be diligent(verb, study, give, direct, use) |
| be extant(verb, keep, overcome, continue, bear) |
| be in effect(verb, continue, stay, extend, sustain) |
| be in force(verb, continue, stay, extend, sustain) |
| be industrious(verb, study, give, direct, use) |
| be left(verb, keep, overcome, continue, bear) |
| be obstinate(verb, expression, idiom, obstinacy) |
| be resolute(verb, continue, endure, pursue, proceed) |
| be resolved(verb, work, advance, continue, extend) |
| be staunch |
| be steadfast |
| be tenacious |
| be the case(verb, continue, stay, extend, sustain) |
| be valid(verb, continue, stay, extend, sustain) |
| bear down(verb, expression, study, give, direct) |
| bear with |
| brace yourself |
| bug(verb, follow, harass, trace, track) |
| carry out(expression, move, work, develop, do) |
| chase(verb, follow, trace, seek, track) |