2. Regret
a. + to infinitive
b. +  V-ing
c. Can be followed by a "to infinitive" or "ing" form verb, meaning not changed a lot
d. Can be followed by a "to infinitive" or "ing" form verb, but different meanings

3. Suggest
a. + to infinitive
b. +  V-ing
c. Can be followed by a "to infinitive" or "ing" form verb, meaning not changed a lot
d. Can be followed by a "to infinitive" or "ing" form verb, but different meanings

4. Deny
a. + to infinitive
b. +  V-ing
c. Can be followed by a "to infinitive" or "ing" form verb, meaning not changed a lot
d. Can be followed by a "to infinitive" or "ing" form verb, but different meanings

5. Expect
a. + to infinitive
b. +  V-ing
c. Can be followed by a "to infinitive" or "ing" form verb, meaning not changed a lot
d. Can be followed by a "to infinitive" or "ing" form verb, but different meanings