I. Alma Redemptoris Mater
(first Sunday of Advent until the Feast of the Purification/Candlemas)
Alma Redemptoris Mater, quae pervia caeli porta manes et stella maris, succurre cadenti, surgere qui curat, populo: tu quae genuisti, natura mirante, tuum sanctum genitorem, Virgo prius, ac posterius, Gabrielis ab ore sumens illud ave, peccatorum miserere.
Holy mother of our Redeemer, thou gate leading to heaven and star of the sea; help the falling people who seek to rise, thou who, all nature wondering, didst give birth to thy holy Creator. Virgin always, hearing the greeting from Gabriel’s lips, take pity on sinners.
II. Ave Regina Caelorum
(after Purification/Candlemas until Easter Vigil)
Ave regina caelorum, ave domina angelorum: salve radix, salve porta, ex qua mundo lux est orta: Gaude Virgo, gloriosa, super omnes speciosa, vale o valde decora, et pro nobis Christum exora.
Hail, queen of heaven, hail lady of the angels. Hail, root, hail the door through which the Light of the world is risen. Rejoice, glorious Virgin, beautiful above all. Hail, O very fair one, and plead for us to Christ.
III. Regina Caeli
(Easter Vigil through Pentecost Sunday)
Regina caeli, laetare, alleluia; quia quem meruisti portare, alleluia; resurrexit sicut dixit, alleluia; ora pro nobis Deum, alleluia.
Queen of heaven, rejoice, alleluia; for He whom thou was chosen to bear, alleluia; has risen as He said, alleluia; pray for us to God, alleluia.
IV. Salve Regina
(day after Pentecost Sunday until the first Sunday of Advent)
Salve Regina, mater misericordiae, vita, dulcedo, et spes nostra salve. Ad te clamamus, exules filii Evae. Ad te suspiramus, gementes et flentes, in hac lacrimarum valle. Eia ergo, advocate nostra, illos tuos misericordes oculos, ad nos converte. Et Jesum, benedictum fructum ventris tui, nobis post hoc exsilium ostende. O Clemens, o pia, o dulcis virgo Maria.
Hail holy queen, mother of mercy, hail our life, our sweetness, and our hope. To thee do we cry, poor banished children of Eve. To thee do we send up our sighs, mourning and weeping in this vale of tears. Turn then most gracious advocate, thine eyes of mercy towards us. And after this, our exile, show unto us the blessed fruit of thy womb, Jesus. O clement, o loving, o sweet Virgin Mary.
Fore more info, see: https://adoremus.org/2007/09/singing-the-four-seasonal-marian-anthems/