She takes a taxi
They eat sandwiches

Presente Simple:
A taxi is taken by her
Sandwiches are eaten by them

Pasado Simple:
A taxi was taken by her 
Sandwiches were eaten by them

Presente Continuo:
A taxi is beging taken by her
Sandwiches are being eaten by them

Pasado Continuo:
A taxi was being taken by her
Sandwiches were being eaten by them

Futuro con Will:
A taxi will be taken by her
Sandwiches will be eaten by them

Futuro con Going to:
A taxi is going to be taken by her
Sandwiches are going to be eaten by them

Can:
A taxi can be taken by her
Sandwiches can eaten by them.

Present Tense:
Positive: I dance salsa today 
Negative: I don´t dance salsa today
Interrogative: Do I dance salsa today?

Past Tense:
Positive: I dance salsa yesterday
Negative: I didn't dance salsa yesterday
Interrogative: Did I dance salsa yesterday?

Present Progressive:
Positive: I am dancing salsa now
Negative:  I am not dancing salsa now
Interrogative: Am I dancing salsa now?

Past Progressive:
Positive: I was dancing salsa now
Negative: I wasn't dancing salsa now
Interrogative: Was I dancing salsa now?

Future with Will:
Positive: I will dance salsa tomorrow
Negative: I won't dance salsa tomorrow
Interrogative: Will I dance salsa tomorrow?

Future with Going to:
Positive: I am going to dance next year
Negative: I am not going to dance next year
Interrogative: Am you going to sing next year?

Present Perfect:
Positive: I have danced salsa for 3 years
Negative: I haven't danced salsa for 3 years yet
Interrogative: Have I you danced salsa yet?

Present Tense: 
Positive: She eats apple.
Negative: She doesn´t eat apple. 
Interrogative: Does she eat apple?

Past Tense:
Positive: She eats apple.
Negative: She didn´t eat apple.
Interrogative: Did she eat apple?

Present Progressive:
Positive: She is eating apple.
Negative: She isn't eating apple.
Interrogative: Is she eating apple? 

Past Progressive: 
Positive: She was eating apple.
Negative: She wasn't eating apple.
Interrogative: Was she eating apple?

Future With Will:
Positive: She will eat apple.
Negative: She won't eat apple.
Interrogative: Will she eat apple?

Future With Be Going To:
Positive: She is gonig to eat apple.
Negative: She isn't going to eat apple.
Interrogative: Is she going to eat apple?

Present Perfect:
Positive: She has eaten apple for 1 year.
Negative: She hasn't eaten apple for 1 year yet
Interrogative: Has she eaten apple for 1 year yet?