Yes, you are right.
Many Spanish words are similar to the English (without being cognates.) I use those similarities to help me remember them.
"cielo" (sky) ; "ceiling" comes from the same root. "intentar" (to attempt, try); intend, intention come from the same root.
aprender (to learn) ; related English = apprehend (to apprehend/acquire knowledge.
verdad (true), veracity in English
"significar" (significado) (to mean something, meaning ) -- significance
"aumentar" (to increase); English = augment. "disminuir" ( to decrease); English - diminish.
"salud" (health) ; English - salubrious. salutary,
Parecer (to seem, look); English related: to appear
There are many such words. It helps if you have a good English vocabulary.
You will find that some text books and teachers will tell you that in Spanish, the very near future should be conjugated with the present tense. For example: I will start my class this afternoon. It would sound odd in Spanish to use the future tense in this case, because it means the same as: I start my class this afternoon.
jlbdale: Yes, you can use present tense but with the concept of future. This sentence is a good example. We often do the same thing in English. "He starts tomorrow" is actually present tense, but obviously we are talking about tomorrow so it has the sense of future. It is the same in Spanish. It is called "near future". Reference, "500 Spanish Verbs", page xxi; under the uses of present tense: "(e) A near future. examples: 1. Mi hermano llega tomorrow. My brother arrives tomorrow. 2. ¿Escuchamos un disco ahora? Shall we listen to the disk now?
No. Simple reasons. If they have you the Spanish sentence ""Yo comienzo mañana " and are asking you to translate, there is not "will" in that sentence so you can't add one. If they have you "I start tomorrow" in English and asked you to translate into Spanish, there is no "will" in that sentence either. However if you wanted to saw I will start tomorrow, then you could say "Voy a comenzar mañana" , however that is a totally different concept than "I start tomorrow"