爱 love; affection,like; be fond of; be keen on,cherish; hold dear; take good care of; treasure,be apt to; be in the habit of
母爱 maternal love; mother love; a mother‘s love for her children; maternal affection
父爱 paternal love
父母的爱 parental love
父母子女间的爱 love between parent and child
子女对长辈的爱 filial love
互爱 reciprocal affection
慈爱 the benevolent affections
疼爱 the tender love
夫妻之爱 conjugal love
深深[永恒,真挚,贞洁,坚定不移]的爱 ardent [everlasting,sincere,chaste,steadfast] love
狂热的爱 fanatic love; wild love
强烈的爱 a keen affection
爱如己出 cherish a child as one‘s own
爱恨交织 be overwhelmed by mixed lovehate feelings
爱憎分明 have a clearcut stand on what to love and what to hate
爱莫能助 be sympathetic but have no ability to help; be willing to,but powerless to render assistance
爱校如家 love the school as dearly as one does one‘s own home
永远相爱 love each other with an undying affection
疼爱某人 dearly love sb.; set one‘s affection on sb.
终生钟爱妻子 retain a tender affection for one‘s wife to the end of one‘s life
真诚[温柔,疯狂,盲目]地爱 love sincerely [tenderly,wildly,blindly]
还有
最直接的说法：
I love you 我爱你.
有感情,但不确定有爱情的说法：
I have a crush on you我对你有点动心.
I care about you deeply我非常关心你.
保守含蓄的说法：
I`m fond of you 我对你有好感.
强烈的、戏剧化的说法：
You light up my life你照亮我的生命.
I can`t live without you我没有你活不下去.
You mean the world to me你对我来说是最重要的.
My heart belongs to you我的心属于你.
You take my breath away你让我忘记呼吸.