Hi Samanjoonii, In your first sentence: "A friendship is like a ship on the sea, it needs to stay afloat.", you have two main (or independent) clauses. If your intention was to join two main clauses with a comma only, then you have run-on sentences which are brought together without a proper connection. To connect two main clauses, you need a conjunction as well. For example: "A friendship is like a ship [in] the sea, and it needs to stay afloat." On the other hand, if you intended for "it needs to stay afloat" as an additional elaboration of your starting claim "A friendship is like a ship [in] the sea", you can use a dash (—) for the job. For example: "A friendship is like a ship [in] the sea — it needs to stay afloat." * I changed your "on" to "in" as the focus is on a metaphorical ship "in" a large area such as the sea. For your second sentence: "If a friendship is one-sided, it will most likely sink in the sea of friendship[s].", you have correctly used a conditional sentence to describe a negative future result if a negative situation persists. This is essentially a first conditional — for likely future scenarios. In fact, you can also the zero conditional, which expresses general truths that apply all the time. For example: If a friendship is one-sided, it sinks in the sea of friendship[s]." ** I pluralised your "friendship" to "friendships" as the sea is a metaphor for so many friendships that one may have in life. Another example: I was not able to spot my mother from the sea of faces. (sea of faces actually mean the endless number of faces you see, which looks like an endless sea stretching towards the horizon) I hope this helps.

Nick and Mr Lance have both corrected an error in the first sentence, an error known as a comma splice. Nick replaced the comma with a full stop, splitting the sentence into two shorter ones, while Mr Lance added a conjunction 'and' to the comma. There is a third way, which keeps the structure and appearance closer to your original than either of these, which is to replace the comma with a semicolon: Friendship is like a ship on the sea; it needs to stay afloat. The only other error is the use of 'likely' as an adverb. This is a common mistake because it does look like one, but in fact it is an adjective, one of several that end in -ly, such as lively, comely, mealy, smelly etc. Instead of "it will most likely" you could put "it is likely to" or "it will most probably".

The sentence is grammatically correct. The only correction I have is: A friendship is like a ship on the sea. It needs to stay afloat. If a friendship is one-sided, it will most likely sink in the sea of friendship. However, the second sentence needs clarification. The sea of friendship does not go well with your first sentence. You identified friendship as the ship, not the sea.

Yeah kinda