'No tengo' means, "I don't have..." An 'estuche' can be many things. It can be a way of saying, "I don't have any high trump cards. " It can mean, "I don't have a doctor's kit bag." It can mean, "I don't have a jewelery box." It can also mean, "I don't have a student's school material kit bag (smaller than a backpack - 'mochila).' A set of drafting instruments might also come in an 'estuche.' Take your pick; they're all correct.
It means pencil case a pencilcase it is masculine (un)
"Dentro de mi estuche, tengo..."
I do not have
Estuche means pencil case.
Tengo means 'i have' if you had the phrase 'Tengo un problema' that would mean in english, 'i have a problem'
"Cuando tengo" translates to "when I have" in English.
no, no tengo, translated to English means: no, I do not have it.
if you're asking what "tengo in spanish" means in english, its i have. or i am. you would use it to say your age.(example) hope it helps :)
I have it.
Tengo el perro translates from Spanish to mean 'I have a dog.'
"Ya tengo novio" in English means "I already have a boyfriend."
"bueno, tengo que..." means Good, I have to... [insert action here]