1. Auxiliary verbs + main verb: This is the most common situation. The auxiliary verb helps the main verb form a tense, mood, or voice.
* I am going to the store. (Present continuous)
* She has been working all day. (Present perfect continuous)
* They will be eating dinner soon. (Future continuous)
2. Modal verbs + main verb: Modal verbs (can, could, will, would, should, may, might, must) also precede the main verb.
* I can go to the beach today.
* She should have studied harder.
* They might be leaving tomorrow.
3. Infinitives: An infinitive is the base form of a verb preceded by "to".
* I want to go to the park.
* She tried to open the door.
4. Gerunds: A gerund is a verb ending in "-ing" that acts as a noun.
* Running is my favorite exercise.
* Swimming in the ocean is fun.
5. Phrasal verbs: These are verbs that combine with prepositions or adverbs to create new meanings.
* I'm going to pick up my friend at the airport.
* She looked up the answer in a dictionary.
6. Imperative mood: In the imperative mood, the verb stands alone as a command or request.
* Go to your room.
* Stop talking.
Important: While two verbs can be next to each other, it's important to make sure they are grammatically correct and form a coherent meaning.