There were a few words and phrases there which you can use when talking about learning Gaelic.
cùis(ean) (f)
thing(s), matter(s)
a’ ciallachadh (vn)
meaning
cuimhne (f)
memory
can! (v)
say!
a’ dìochuimhneachadh (vn)
forgetting
creid! (v)
believe!
a’ creidsinn (vn)
believing
tuig! (v)
understand!
a’ tuigsinn (vn)
understanding
teanga (f)
tongue (but also language)
thèid agam air
I can … (I am able to)
Let’s look at them again in context.
Tha cùisean a’ dol gu math leam.
Things are going well with me.
Dè tha thu a’ ciallachadh?
What do you mean?
Nach eil cuimhn’ agad?
Don’t you remember?
Ciamar a chanas mi e?
How do I say it?
‘S fheàrr dhuinn dìochuimhneachadh mun sin.
We’d better forget about that.
Nach can thu sin a-rithist?
Won’t you say that again?
‘S fheàrr dhuinn dìochuimhneachadh mu dheidhinn sin.
We’d better forget about that.
Cha chreid mi gun robh siud glic.
I don’t believe that was wise.
Chan eil mi a’ tuigsinn facal de na tha thu ag ràdh!
I don’t understand a thing you’re saying!
Tha cuimhn’ agam.
I remember.
Tha e agam air bàrr mo theangaidh.
It’s on the tip of my tongue.
… thèid agam air cuimhneachadh!
… I will [be able to] remember!