1. писать - write, wrote
читать - read, read
посещать - visit, visited
спрашивать - ask asked
быть - be, was/were
2. Go
Helped
Did
Saw
3.didn’t meet
Didn’t drink
Doesn’t work
Don’t like
4. Warmer, the warmest
More important, the most important
Worse, the worst
Happier, the happiest
Taller, the tallest