Below shows a few examples of some common grammatical redundancy in ASL.
Here is a little reminder on how to understand the use of gloss. The "dash" sign in a gloss means a single or non-compound ASL word, even if the words in English is more than one. For example, the English term look forward contains two words, but it is signed in ASL as a single word look-forward, so the dash is inserted between words to make it a single.
The ASL word base-on is a single signed word. It's a grammatical error to sign base-on on as illustrated in the video clip above. This would be equivalent to base on on in English, which is redundant.
The ASL verb bring usually contains a single inflected verb bring-to in a verb phrase. A spatial reference is usually established in a sentence beforehand. There is no need to include to in the verb phrase.
When a spatial referent is established in space using indexing, there is no need to use on with depend. The ASL verb depend is usually inflected to depend-on which specify a spatial location of a referent.
The single ASL word every-day means "every day" or "everyday". It is incorrect to use this sign to refer to "every" which can result in a redundancy. For example, if you sign everyday and nightly (or every-night), which becomes redundant. It is equivalent to the gloss: everyday every night or everyday nighly in English.
This gloss look-for for as illustrated in the video clip above can be commonly found in some everyday conversation among some signers and ASL students. It is redundant as this ASL signed word look-for is a single ASL verb.
Avoid common signing errors in ASL beginners.