Gerund or Infinitive

......... me if I've told you this before.
Stopping
Stopped
Stops
Stop

All I can say at the moment is: Long ......... the company!
live
lives
lived
living

Sometimes I wish I ......... what the future holds.
know
known
knew
knows

And at other times I'm glad I ......... know what the future holds.
didn't
doesn't
hadn't
don't

Let's ......... there tomorrow if it's fine.
going
gone
go
goes

Try ......... the door really hard if you want to open it.
pushing
push
pushes
pushed

Try ......... these irregular verbs by next week.
learned
to learn
learns
learning

I really appreciate your ......... me at this difficult time.
helps
help
helped
helping

I'll finish now and I look forward to ......... you again soon.
seeing
see
seen
having seen

Please come back soon and ......... the work you started two weeks ago.
finished
finishing
finish
finishes