Look out for modal verbs particularly where there are rules to be followed. Notice how you use them in your own writing to express the likelihood of something happening.

NOTE: There is a situation the present modal verbs like ‘can’ and ‘may’ can indicate past actions: when\xa0 making deductions about the past. For instance, we can use might have or may ...

Conjugate means changing the endings of a verb to match the person doing the action. You can use the infinitive when using modal verbs and the future tense.