Fill in all the gaps, then press "Check" to check your answers. Use the "Hint" button to get a free letter if an answer is giving you trouble. You can also click on the "[?]" button to get a clue. Note that you will lose points if you ask for hints or clues!
Basic Rules
The Bare infinitive (infinitive without "TO") is generally used in the following situations:
a) after modal verbs like Can/ Could, May/ Might, Shall/ Should, Will/ Would;
b) to express strong advice, using the phrase: "had better" + bare infinitive;
c) to express preferences, using the expression: "would rather" + bare infinitive.