| follow up(verb, phrasal verb, follow, pursue, track) |
| keep an eye(expression, follow, pursue, track) |
| keep up with(expression, follow, pursue, track) |
| have an eye(expression, follow, pursue, track) |
| maintain awareness(expression, follow, pursue, track) |
| monitor(verb, follow, observe, record, track) |
| record(verb, follow, observe, track) |
| trace through(verb, phrasal verb, follow, pursue, track) |
| track out(verb, phrasal verb, follow, pursue, track) |
| spy upon(verb, phrasal verb, follow, trace, track) |
| be aware(expression, follow, pursue, track) |
| investigate(verb, follow, observe, record, track) |
| keep a tab(expression, follow, pursue, track) |
| keep under observation(expression, follow, pursue, track) |
| keep watch over(expression, follow, pursue, track) |
| observe(verb, follow, record, track) |
| trace back(verb, phrasal verb, follow, trace, track) |
| keep tabs on(expression, follow, pursue, track) |
| spy on(verb, phrasal verb, follow, trace, track) |
| keep an eye open for smb(expression, follow, pursue, track) |