Answer:
hayan recibido haya dado - hayamos entendido - hayan visto
Explanation:
Regular verbs form the present perfect by conjugating the auxiliary verb "hacer" in the subjunctive followed by the past participle of the verb.
The regular forms of the present perfect subjunctive are:
1st conjugation (ar), participle: "ado"
Example: hablar-> hablado
2nd conjugation (er), participle: "ido"
example: beber-> bebido
3rd conjugation (go), participle: "ido"
example: vivir-> vivido
The singular form is una libreta
C. Una monarquía parlamentaria
Reduce the number of trips you take in your car.
Reduce or eliminate fireplace and wood stove use.
Avoid burning leaves, trash, and other materials.
Avoid using gas-powered lawn and garden equipment.