do these make sense?

1. Aller a un centre commercial ou un cafe.

2. Ils aller au cineama et faire des videos.

3. Jouer au tennis wet nager.

also:

1. Mme Smith descend le bus.
2.Vous se promene le jardin.
4.M. et Mme Smith achete l'appareil photo.
5. Cheri, tu na pas aime le sandwich.

For 3, How would you say we dropped the camera in water? nous means we correct?

In your first group -- why did you use the infinitive forms of the verbs? The verbs should agree with their subjects in number and case.

In the second group, 1 is correct. In the next two, your verbs don't agree with your subjects. I don't know what you mean in 5 when you use "na."

The statements you provided are partially grammatically correct, but they contain a few errors. Allow me to explain and correct them for you:

1. Aller a un centre commercial ou un cafe.
This sentence is grammatically correct. It means "Go to a shopping center or a café."

2. Ils aller au cineama et faire des videos.
This sentence contains a couple of errors. Firstly, the verb "aller" (to go) needs to be conjugated to match the subject "ils" (they). The correct form is "Ils vont" which means "They go." Secondly, there is an incorrect usage of the verb "faire" (to do/make). Instead of "faire des videos" (to make videos), it should be "regarder des vidéos" (to watch videos) to maintain the context. So a corrected sentence would be: "Ils vont au cinéma et regardent des vidéos," which means "They go to the cinema and watch videos."

3. Jouer au tennis wet nager.
This sentence also contains a mistake. Instead of "wet," it should be "et" which means "and" in English. Additionally, the verb "nager" (to swim) is not correctly conjugated to fit the sentence structure. The correct sentence would be "Jouer au tennis et nager," which means "Play tennis and swim."

In summary, the correct versions of the sentences are:

1. Aller a un centre commercial ou un cafe.
2. Ils vont au cineama et regardent des videos.
3. Jouer au tennis et nager.